What the pattern means: Riders here spend as much energy debating the statistics as recounting the damage: broken necks, punctured organs, and deaths from being thrown or crushed, with several noting that ground handling injures people as often as the ride itself.

What commenters described: This is not as much of an issue if you actually bond with the horse, learn proper education, and do cross training to be properly fit and balanced.

Limit: I've had proper training and been riding 23 years, have owned my horse for 10 years, I am very fit, and I just got thrown when my horse tripped at a gallop, and I broke my neck. Was wearing a helmet. None of that info is true.

What the pattern means: Bird fancier's lung shows up again and again under different names — pigeon fancier's, eosinophilia, interstitial lung disease — and several commenters stress it's the feather dust and dander, not just droppings, that trigger the reaction, sometimes in someone who never directly handled the birds.

What commenters described: I keep chickens. You'd better believe when I shovel the coop I'm wearing a 3M 2097 respirator.

Limit: In one case, it was the husband who never even dealt with the birds who developed the condition.

What the pattern means: Two camps face off directly in the thread: newcomers alarmed by warnings that soft corals can "gas your house," and longtime keepers who call that framing sensationalized while still confirming real risks — aerosolized palytoxin from boiling live rock, Vibrio infections from tank wounds — that basic gloves-and-goggles precautions actually prevent.

What commenters described: Wear gloves and goggles. Don't boil live rock indoors. Wash your hands. Basic stuff like that.

Limit: I can confirm coral poisoning in a joint hurts like nothing on earth for weeks on end, and you may not notice it until several hours after it happens.

What the pattern means: The case against barbecue competitions isn't a single acute injury but a compounding one: heavy smoke exposure stacked on top of a competition diet and long sedentary stretches, which commenters tie directly to cardiac disease, cancer, and diabetes risk among pit masters.

What commenters described: I've stopped BBQing and grilling, except for a couple times a year... I reduced my risk of lung and stomach cancer from 10% to like 4%.

Limit: That reduction is a self-estimated figure from casual googling, not a clinical one — the same commenter ends by admitting "I dunno."

What the pattern means: Competitive eating gets nominated with no elaboration at all — a single bare mention rather than a story, injury, or mechanism — so the risk case here rests on the sport's reputation rather than on any first-hand account in this dataset.

What the pattern means: Fly fishing's sole nomination here isn't about tackle or repetitive casting motion at all — it's a single angler in Australia flagging years of close snake encounters on the water, a wildlife hazard rather than a gear or technique one.

What commenters described: Had waaaaay to many encounters with snakes over the years. still love it though.

What the pattern means: The single comment behind reptile-enclosure maintenance is a self-aware aside rather than a health story — a keeper realizing mid-cleaning that dirt swaps in a snake's enclosure probably call for a mask, with no diagnosis or outcome attached.

What commenters described: I seriously need to get some masks for when I do the dirt swap in my snakes enclosure.

What the pattern means: A dramatic warning about sphagnum moss triggering sporotrichosis ('Rose Gardener's Disease') drew immediate pushback from a self-identified infectious disease physician and a commenter citing CDC and Merck Manual data, both clarifying the fungus enters through skin cuts rather than inhalation and rarely causes serious illness in people with healthy immune systems. The thread settled on gloves, damp handling, and masking for frequent or occupational exposure, while a side debate flagged perlite dust as the more overlooked hazard for the same hobbyists.

What commenters described: Don't worry, you're constantly inhaling spores- moss or no moss... Sporotrichosis... occurs because there's an injury to the skin which deposits the fungus deeper. Even then, in generally healthy people, the disease only manifests as a skin/lymphatic issue.

Limit: Skeptics pushed back too: one longtime grower said they know more bonsai practitioners who lived past 90 than cases of the disease in their community, and a CDC-citing reply argued it's better described as a rare occupational hazard than a routine risk of hobby bonsai work.

What the pattern means: Boaters and other outdoor hobbyists describe years of unprotected sun exposure — one logging 80 to 120 days a year on the water before taking precautions seriously — against a cultural backdrop where tanning is still treated as attractive and protective rather than risky, with a UV-blocking shirt offered as a sweat-proof alternative to reapplying sunscreen.

What commenters described: Uv shirt with a hood, nothing slathered on, they don't wash/sweat off, help keep you cool too.

Limit: One commenter added a caveat to the alarm: skin cancer rates have climbed with this normalized sun exposure, but earlier detection has kept it 'not as fatal' as the rising numbers alone would suggest.

What the pattern means: Commenters trace the danger in yardwork to the chemicals rather than the plants themselves: one wears a respirator after watching a parent suffer a fatal twenty-year chronic lung illness built on a lifetime of gardening, and another now dons industrial rubber gloves for even the smallest pesticide job. A lone aside undercuts the hobby's frugal reputation, tallying $300 in raised beds and soil against two cherry tomatoes.

What commenters described: Gardening and woodworking. Strong connections to e.g. MS. It's the chemicals, not the flowers.

What the pattern means: Rather than a personal account, the lone submission leans on mushroom-hunting folklore — bold hunters and old hunters exist, but never both in the same person — to warn that overconfidence in identifying wild mushrooms is what actually gets foragers killed, not the mushrooms themselves.

What commenters described: There are bold mushroom hunters, and there are old mushroom hunters, but there is a reason you never find Old, Bold Mushroom hunters

What the pattern means: This entry is a bare, one-word nomination with no elaboration on the mechanism of harm, leaving readers to infer the injury risk from the sport's inherent balance demands and hard-surface impact rather than from any first-hand account.

What the pattern means: The single supporting comment frames spore inhalation as a delayed-onset hazard for mushroom growers, noting that someone can eat and work around mushrooms for years without issue and then abruptly develop a lifelong respiratory allergy once masking and ventilation lapse.

What commenters described: without vigilant masking and proper ventilation, mushroom farmers are at risk for severe, potentially lifelong, respiratory issues as a result of spore inhalation.

What the pattern means: Commenters spend more time arguing about whether "bagpipe lung" is real than describing it, but a piper with a microbiology PhD settles the debate: hypersensitivity pneumonitis from fungal growth in unclean or unseasoned bags is documented back to the 1950s, not a single overblown death. The thread extends the same risk to any woodwind or brass mouthpiece that traps moisture, from saxophones to clarinets.

What commenters described: great cardio and core work

Limit: musicians should be aware of the dangers and be diligent about keeping their instruments clean

What the pattern means: Musicians frame repetitive strain and noise exposure as a slow occupational hazard rather than one dramatic injury, citing tinnitus from unprotected amplifiers, clarinet-related dental wear, and tuba-linked "heart splits" as instrument-specific variations on the same overuse pattern. One guitarist practicing nine to ten hours daily found relief only after physiotherapy and technique coaching, suggesting the damage is manageable if caught early but not something good posture alone reliably prevents.

What commenters described: spent time with physiotherapists...and a pro jazz player to perfect my technique...and i can play fluidly with no tension all day!

Limit: it's important to practice good posture and proper gesture handling, but still, these do not prevent possibility for long term damage

What the pattern means: Festivalgoers and DJs converge on the same fix for noise-induced hearing loss: attenuating earplugs like Loop or Alpine musicsafe, which several say clarified rather than muffled the mix once they started wearing them. The warnings come from experience — one commenter's ears rang for hours after a single 45-minute set, and another notes that feeling fine afterward doesn't mean the damage isn't already done.

What commenters described: The sounds that are important are actually clearer with them in.

Limit: That you know of. This was a warning. Hearing damage happens over time.

What the pattern means: The two blacksmiths who weigh in skip past the obvious burn and dust risks to flag a hazard most shop-safety advice misses: infrared radiation from a forge running past 2000°F, which can cause cataracts and corneal burns without any impact or spark ever touching the skin. Their fix borrows from glassblowing rather than metalworking — cotton sleeves and glassblower-style eyewear — alongside the more standard warning that hearing can be permanently damaged by a single hammer strike.

What commenters described: I wear thin cotton sleeves and special glasses used by glassbowers, that way I don't get cataracts or corneal burns.

Limit: Blacksmithing can permamently damage your hearing with one stroke of a hammer.

What the pattern means: Commenters describe uncured gel polish sensitizing skin into a lifelong acrylate allergy that then cross-reacts with dental fillings, contact lenses, and other cosmetics — several specifically named the cheap Amazon brand Beetles as the trigger, while others found no reaction once they switched to professional-grade Gelish or OPI.

What commenters described: I had a reaction and immediately assumed I had this allergy but the allergy test was negative. The dermatologist suggested trying a better quality brand on just 1 finger and sure enough, no reaction to higher-end gel

Limit: Once the allergy develops it doesn't go away — several say it now blocks them from dental fillings, contact lenses, and other everyday adhesives, not just nail polish.

What the pattern means: Longtime climbers in this thread largely agree that rock and sport climbing are about as safe as you make them, but ice climbing, alpine routes, and the logistics of getting to and from a remote crag are where things actually turn fatal — several describe partners killed in falls over the years and warn that toxic 'faster is safer' habits around rappelling anchors are what get people hurt, not the climbing itself.

What commenters described: I started in my 50s after a bad car accident and spine injury. It not only brought me back but I'm stronger than I was in my 30s.

Limit: Even people defending the sport's safety admit a real culture problem: some climbers skip stopper knots on rappel to save thirty seconds, arguing faster is safer.

What the pattern means: The thread's core disagreement is scale, not danger: skydivers cite hard numbers (9 U.S. fatalities out of 3.88 million jumps in 2024) to argue plain skydiving is safer than driving to the airport, then break sharply with anyone who conflates that with base jumping or proximity wingsuit flying, which multiple commenters describe as almost a countdown to death once you take it up.

What commenters described: There are many people out there who have been skydiving for their entire lives, and have many thousands of skydives... If you do it relatively sanely and conservatively, it is easily a hobby that is done well into your 60s and 70s.

Limit: Wingsuiting from an aircraft is described as reasonably safe only after 200 to 400 prior skydives of experience; proximity flying near cliffs and terrain is where commenters say the odds flip entirely.

What the pattern means: Every substantive comment on sailing circles back to sun, not water — commenters call unprotected time on deck a bigger long-term threat than storms or drowning, and one sailor describes a mild 63-degree day turning into a week-long recovery from second-degree sunburn after forgetting sunscreen just once.

What commenters described: We have these UVF shirts/clothing now. I don't understand how come everyone isn't wearing them all the time.

Limit: A tangent about the '107% five-year melanoma survival rate' shows even the reassuring statistic is misleading — commenters trace it to healthcare access and repeat-diagnosis counting rather than the disease being harmless.

What the pattern means: Surfing's discussion splits into two lesser-known risks beyond sunburn: a cardiologist's observation that older surfers can go from resting in cold water to sudden all-out paddling and trigger heart attacks, and 'surfer's ear' bone growth that several commenters needed drilled or chiseled out after decades in cold water, describing eight-week recoveries and the risk of it regrowing if you go back too soon.

What commenters described: It was a game changer. Way less stressful going surfing.

Limit: One commenter warns the bone growth can regrow faster after surgery, and a friend who went back to surfing before being cleared by the surgeon ran into complications.

What the pattern means: Both comments here focus on cumulative smoke exposure rather than any single dramatic incident — one person traces a lifetime of wood-stove and campfire smoke back to childhood and has since switched entirely to electric heat, while the other still enjoys campfires but now treats the smoke like something to wash off, not just breathe through.

What commenters described: I love having campfires and making charcoal. I just use breathing protection and have a shower afterwards.

What the pattern means: The two entries here don't describe a specific injury so much as a slow accumulation — one commenter frames long-distance driving as dangerous mainly because of the hours of sitting, stress, and poor road-food habits it normalizes over years, while the other states flatly that the mileage itself wears down health without elaborating why.

Limit: The longer comment is explicit that it's the imbalance — sitting, skipped sleep, no exercise — that does the damage, so the same warning gets applied to gaming, coding, or any sedentary hobby taken to excess.

What the pattern means: A former hobbyist-turned-professional gunsmith lays out an almost overwhelming inventory of everyday exposures — CNC coolant, heat-treating and welding fumes, bluing residues, metal dust that gets past respirators, cosmoline from old rifles, wood and fiberglass finishes — on top of broken fingers and out-of-battery explosions, and now attributes a lymphoma diagnosis to nine years of accumulated contact with all of it.

Limit: He's not certain the lymphoma is from gunsmithing specifically, but says knowing what he knows now, he wouldn't take up the hobby again the way he did.

What the pattern means: This one is a single bare mention — no elaboration on method or outcome — but bus surfing (riding atop or clinging to the outside of a moving bus) is one of the few entries in this list where the raw comment gives no specifics beyond naming the activity itself.

What the pattern means: A self-described DIY mechanic points out a gap between common practice and real protection: gloves have become normal in the garage, but the same person notes almost nobody bothers with a respirator even though most of the toxic exposure comes from what gets sprayed or inhaled, not touched.

Limit: Gloves are described as common, but almost nobody is wearing masks consistently, even though inhalation is called a route of exposure alongside skin contact.

What the pattern means: Like a couple of other adventure sports on this list, whitewater kayaking appears here as a one-word nomination with no supporting narrative — it's named as a risk but the raw comment stops there, unlike the multi-comment threads on climbing or sailing where people actually explain what goes wrong.

What the pattern means: One experienced thru-hiker pushes back on the idea that racking up hike after hike makes backcountry travel predictable, pointing to several acquaintances who ended up lost or stranded and were only recovered because they got lucky.

Limit: Their stated rule is to treat every outing as its own experience rather than assume past smooth trips guarantee this one will go the same way — in their words, 'every hike is to respected as its own experience.'

What the pattern means: The single supporting comment on homebrewing skips the equipment and sanitation angle entirely and goes straight for the metabolic one: liquid calories from beer displacing actual food intake, plus the cumulative liver and skin toll of regular alcohol consumption over years.

What the pattern means: The lone comment on mountain biking is a blunt anecdote about attrition rather than a specific injury type: the commenter says every person they personally know who took up the sport eventually quit because of injuries, not boredom or cost.

What the pattern means: The single comment on drag performance names two separate wear points rather than one: adhesives used for wigs and makeup breaking down skin over time, and the physical toll of the dance choreography itself, which the commenter says has led numerous performers to hip and knee replacements.

What the pattern means: The commenter here is less concerned with warning others than pointing out an omission — they note skiing hadn't come up yet in the thread before describing their own accident: a depressed tibial plateau fracture, torn MCL, torn meniscus, and 2.5cm of lost bone from a single fall in February.

What the pattern means: Long-time reloaders and range regulars split into two camps here: casual indoor shooters who accumulate lead from primer dust and brass residue, and decades-long bullet casters who wet-tumble, glove up, and get blood-tested clean; several also flag concussive blast waves in enclosed bays as a brain-injury risk distinct from the lead itself.

What commenters described: I switched to wet tumbling and using gloves and a lead soap and test for lead at every checkup and it's resolved.

Limit: A buddy of mine has only been shooting for like 4 years, already has elevated lead levels.

What the pattern means: Buried among dozens of one-word confessions like 'Drinking,' the handful of elaborated replies trace concrete costs -- gastritis that ended one commenter's cocktail habit, a colon-cancer scare tied to years of chasing the perfect whisky -- while someone else jokes that quiet at-home drinking might be the safest hobby on this whole list.

What commenters described: After reading this, i am pretty sure drinking a couple beers alone, at-home, a few nights a week is one of the safest hobbies i could have.

Limit: I used to love cocktails. I have gastritis now... I've accepted alcohol isn't part of my life anymore.

What the pattern means: Nearly every substantive reply here comes from skydivers, not base jumpers, insisting on a hard split between their own sport -- millions of jumps a year with single-digit fatalities -- and base jumping or 'proxy flying,' which multiple commenters with hundreds of real jumps describe as a fundamentally different, far less forgiving activity.

Limit: One commenter cites a documentary in which a jumper says that once you progress to a squirrel/wingsuit, you've effectively got about six months before something goes fatally wrong.

What the pattern means: The stories that stick here are specific ones: kids who unknowingly played dodgeball inside a room thick with disturbed asbestos dust, scrappers killed by radioactive metal pocketed from an abandoned facility, and explorers who lost consciousness in oxygen-depleted basements without ever sensing the gas building around them.

What commenters described: getting older I find myself more and more choosing "safer" places with good ventilation... Safe spots can be cool to explore too, no need to get yourself in (health) danger.

Limit: afaik FFP2 won't filter asbestos ; for an asbestos-ridden visit go for FFP3.

What the pattern means: A commercial beekeeper who's worked hives since the late sixties gives the most detailed account in this whole set: he's cut his hive count from eighty down to fifteen after developing anaphylaxis four decades in, watched roughly a dozen colleagues quit for the same reason, and still keeps an epi-pen on hand because desensitization treatment only works for under half the people who try it.

What commenters described: 3rd year -- never been stung in the full suit.

Limit: the success rate of the commercial beekeepers who've done this is less than 50%.

What the pattern means: The instructor's-eye comments are the sharpest here: one MSF trainer describes learning to 'emotionally wash his hands' of students he already suspects won't survive, while others point out that the fatal pattern isn't recklessness alone so much as slowing reflexes and heat strokes catching up with riders as they age into their fifties and sixties.

What the pattern means: Commenters are careful to note this isn't just torch work -- stained glass, fused glass, and kiln-fired enamel all carry the same silicosis risk -- and one person recalls two acquaintances developing metal poisoning from poor ventilation, describing the recovery in their own words as 'very rough.'

What the pattern means: Multiple replies converge on correcting the same assumption: the mercury-in-felt process behind 'mad as a hatter' hasn't been used in generations, so this reads less like an active hobby risk and more like trivia that occasionally trips up people dabbling in historical reenactment.

Limit: modern hat making does not use mercury anymore; the felting technique that caused it fell out of use once cheaper synthetic alternatives became available.

What the pattern means: The thread actually argues with itself over dose: one person doubts hobbyists who bake a few hours a week could develop 'baker's lung' the way professionals working eight-hour shifts do, and gets a blunt reply that it's constant exposure, not job title, that determines the outcome.

Limit: No, it's from being constantly exposed.

What the pattern means: Only four comments sit under this entry, but they split cleanly along the same fault line as the sport itself: heavy joint and disc damage clustered around lifters who are 'juicing,' against one person's flat claim that their own bodybuilding hobby is 'boring and safe' precisely because they aren't.

Limit: So glad my hobby in body building is boring and safe lol.

What the pattern means: One detailed reply lists the hobby's slow-burn hazards -- exhaust fumes, gas and oil on skin, sanding dust, paint -- then pivots to a crash risk that's arguably worse now: vintage cars lack modern crash structures, so owners describe scheduling drives for early-morning low-traffic hours or trailering their cars to shows just to avoid getting T-boned by a distracted SUV driver.

What commenters described: Most vintage car guys I know only drive their old cars to very early morning shows (when there is the lowest commuter traffic) or bring those old cars in trailers towed by modern pickups or SUVs.

What the pattern means: The two replies here talk past each other rather than agreeing: one flags arrhythmias from overdoing espresso specifically, while another counters with research suggesting up to five cups of coffee a day is not just safe but mildly beneficial, leaving where exactly the line sits genuinely unresolved.

What commenters described: Up to 5 cups of coffee per day is scientifically proven to be safe, and even slightly beneficial to health in otherwise healthy individuals.

Limit: Espresso. Too much can give you arrhythmias.

What the pattern means: This brief exchange treats archery's shoulder wear almost as an aside, with one reply drawing a direct comparison to firearms: arrows aren't nearly as lethal as guns, but the same call for careful handling still applies.

What the pattern means: The single detailed comment traces fire gilding back to boiling mercury together with gold to restore antique clocks, a craft referenced on the podcast 'S-Town,' and stresses that without serious ventilation the vapor causes both neurological damage and, eventually, insanity.

Limit: it needs massive ventilation or you can have some later in life major issues both mental and physical.

What the pattern means: One racer describes melting their own lead ballast outdoors on breezy days in full PPE, though only twice in ten years, while a second reply points to a bigger, external harm entirely: leaded racetrack fuel still legally burned at tracks correlates with measurably lower IQ in children who live nearby.

What commenters described: Outside on a breezy day, in an open field with PPE is how we roll.

Limit: Leaded fuel is still allowed at racetracks also, and there is demonstrably lower IQ in children who live near them.

What the pattern means: The single line here captures what sets freediving apart from most entries on this list: there's no gradual warning system, just an invisible personal limit that a diver only discovers by going past it.

What the pattern means: Beyond flagging radon exposure underground, the caver drawing on years of experience makes a quieter point almost by omission: they've stuck strictly to dry caving, and note that the longer they've been in the community, the fewer cave divers -- the wetter, riskier offshoot -- they still know.

What the pattern means: One commenter takes the 'lung damage from unventilated cooking' claim seriously enough to act on it, cutting BBQ, grilling, and kimchi-making down to a few occasions a year and estimating, from their own reading, that it dropped their lung and stomach cancer risk from roughly ten percent to four.

What commenters described: I've stopped BBQing and grilling, except for a couple times a year... it sounds like I reduced my risk of lung and stomach cancer from 10% to like 4%.

What the pattern means: Past the blunt 'respiratory killer' label, the more affecting detail is secondhand: a legendary graffiti writer reportedly said, in a clip several commenters point to, that he'd trade all his fame and friendships to get his health back.

What the pattern means: The lone account here isn't really about optics at all -- it's a father who built large telescopes and cast his own lead counterweights on the stovetop in the garage, the kind of improvised metalworking step that rarely gets mentioned alongside the mirror-grinding itself.

What the pattern means: A single terse line pins the danger squarely on the historical process itself: it's the mercury vapor given off during daguerreotype development, not photography in general, that does the damage.

What the pattern means: This entry rides in as a one-line aside tacked onto a discussion of veteran risk-takers elsewhere in the thread, with a commenter noting that the same pattern of seasoned pilots pushing limits applies to hang gliders too.

What the pattern means: The single supporting comment reads like a checklist of compounding harm: lower back and neck strain from repeated G-forces, possible brain effects from those same forces, and, separately, broken bones from falls off the mat entirely.

What the pattern means: The condition gets its own nickname in the one comment here -- 'clown lung' -- attributed directly to years of breathing in loose talc powder used for makeup and costume work.

What the pattern means: This entry has almost nothing behind it beyond a bare two-word mention, offering no mechanism, no anecdote, and no counterpoint to weigh against the label.

What the pattern means: The commenter files rock knapping under a pattern they'd already been tracking across the thread, describing it as one more dust craft that 'joins the litany' of hobbies causing silicosis if you skip a mask.

What the pattern means: Tucked into a reply about a different lung condition, one commenter adds that backpackers who habitually inflate their sleeping pads by mouth rather than with a pump can develop the same issue from the repeated exertion.

What the pattern means: The one comment here locates the danger less in the animals or terrain than in fellow hunters, framing accidental encounters with other armed people nearby as hunting's real everyday hazard.

What the pattern means: Parkour shows up as a single unelaborated word dropped into the thread, with no supporting detail about falls, joint wear, or anything else to substantiate why it belongs on this particular list.

What the pattern means: The one supporting line frames skateboarding's risk as cumulative rather than acute, arguing that serious, long-term skaters rack up an 'insane' volume of injuries over the years rather than facing a single dramatic wipeout.

What the pattern means: The single comment pairs the danger with genuine enthusiasm rather than regret, warning that bobsled speeds and whiplash can damage the brain and spine while still calling the whole thing, in the same breath, 'lots of fun.'

What the pattern means: Commenters converge on cave diving as the go-to answer for a hobby that quietly kills its most devoted practitioners, citing a scuba instructor's blunt warning and the death of Sheck Exley, author of the sport's own safety manual, at 45. A dissenting diver argues the reputation is overblown once you've actually done the wide-open cavern dives most certifications cover.

What commenters described: If anything goes wrong, you have the rest of your life to sort it out

Limit: One diver pushed back on the doom narrative: most cave diving is not excessively dangerous once you realize most certified dives are wide, open sinkholes rather than tight passages.

What the pattern means: Endurance sport comments split almost evenly between a cardiology case against overtraining — AFib, myocardial fibrosis, aortic stenosis, calcification — and a rebuttal that VO2 max is the strongest predictor of longevity and that moderate mileage is nowhere near the same risk as extreme volume. A few commenters add practical fallout like knee wear, brain fog from dehydration, and friends who look older than they should.

What commenters described: the health benefits of training and staying in shape are far better for you than being a couch potato

Limit: It also causes a great deal of oxidative stress, which can lead to cancer. I know several hard core marathon runners who died young from cancer.

What the pattern means: The dominant risk cyclists describe isn't the bike itself but drivers — a fatal hit-and-run on day one of a cross-country trip and repeated asides that it's the trucks, not the sport — while an unsourced claim about elevated cancer rates from tire and brake dust draws immediate skepticism. Two commenters separately credit switching to a recumbent trike with fixing chronic back and knee pain that upright riding had aggravated.

What commenters described: If I am riding regularly I am limber and have little back pain.

Limit: He was an experienced cyclist, but he was bumped off on the first day by a Ford F150 out in the middle of nowhere.

What the pattern means: Long threads split combat-sports risk into two separate tracks: cumulative head trauma — concussions, CTE, dementia pugilistica — from boxing, kickboxing, judo throws, and BJJ chokes, and blunt orthopedic wear like a C5-C6 disc replacement, wrecked knees and necks, plus recurring mat infections like staph and ringworm.

What commenters described: C-5-C-6 disc replacement thanks to rolling, loved it but only got a year and blue belt before that surgery ended my hobby

Limit: Several practitioners push back that the damage isn't inevitable, pointing to hard-sparring frequency and technique as the deciding factor — one commenter's rule of thumb is one hard spar every six weeks, still toned down to the head.

What the pattern means: Specific crafts map to specific injuries here — hand-sewn leather and crochet to wrist and finger arthritis, embroidery to a wrecked neck, hours of still needlepoint to genuine deep-vein-thrombosis risk — and commenters trade real physical-therapy fixes alongside the complaints.

What commenters described: one of my biggest hobbies is crochet, but it causes a lot of strain on my neck, shoulders, back, and of course fingers/hands. i can only do it for maybe 30min a day now

Limit: A physical therapist quoted in the thread frames it as a fixable technique problem — shift load to the shoulders and elbows instead of the wrists, set the work at proper ergonomic height, and the strain eases.

What the pattern means: Commenters describe sports betting less as physical strain and more as a dopamine trap that pays out the same whether you win or lose, with one account of a homeowner secretly borrowing from coworkers and her boss before the house itself was gone.

What commenters described: She borrowed money from her coworkers and boss because she was worried about losing her house.

Limit: Some commenters flatly reject that gambling counts as a hobby at all, while others insist casual sports betting is exactly that — a genuine disagreement about where the line even sits.

What the pattern means: Golf's danger here has nothing to do with the swing: several commenters point to herbicide and pesticide runoff on courses as a driver of Parkinson's and dementia risk, distinguishing exposure for people who live beside a course from the lighter dose a weekend golfer picks up walking it.

What commenters described: Exposure to the herbicides used on golf courses has been found to increase the incidence of Parkinson’s

Limit: One commenter notes their father golfed weekly for decades with no Parkinson's diagnosis and no other risk factors, explicitly flagging it as a single case rather than evidence either way.

What the pattern means: A professional animator's account carries this entry: six years of prop design and after-hours drawing left her 40 percent disabled in the neck and shoulder blade despite an active, non-sedentary life outside the studio, and she can no longer draw for fun at all.

What commenters described: I developed a repetitive stress injury that left me 40% disabled in my neck and shoulder blade... I no longer draw for fun, I can't. The pain is still there and it is debilitating.

Limit: She notes she wasn't even sedentary — playing sports, dancing, and hitting the gym regularly — which undercuts the assumption that general fitness offsets this kind of repetitive fine-motor strain.

What the pattern means: This entry never gets more specific than "sports": three separate commenters name athletic activity in general rather than any one discipline, agreeing only that the wear compounds with age and that a single bad injury can end your ability to exercise for good.

What commenters described: All dynamic, athletic sports are great for you until you get an injury that renders you unable to exercise for the rest of your life

What the pattern means: Rugby shows up here as a single bare one-word nomination, sitting next to a longer reply that actually names boxing, kickboxing, MMA, and heading a football as the head-trauma culprits, leaving rugby's own risk unstated beyond the implication of belonging on that list.

What the pattern means: This entry chains together crafts that share almost nothing except the metal itself — stained-glass solder, reloaded ammunition, lead-counterweight casting for home telescopes, even decades-old Warhammer figures — with reloaders and glassworkers describing measurably elevated blood-lead levels from handling dust and fumes rather than any single dramatic event.

What commenters described: The grinding should be done with a wet sponge to eliminate dust. You could wear a mask for flux fumes - ventilation is ideal. Don't put the lead solder in your mouth, near food/drink, wash your hands afterward.

Limit: Lead-free solder exists, but old-school stained-glass hobbyists reportedly still prefer working in lead, and even careful reloaders describe elevated lead levels as a common outcome of the hobby rather than a rare mishap.

What the pattern means: Miniature painters and modelers describe a slow-motion physical toll rather than a single injury — glue fumes triggering nosebleeds and, in one account, lasting tics in a former professional model-maker, compounding with the hunched sedentary posture of hours spent leaning over a small brush.

What commenters described: The glue will give me a nose bleed, even with multiple fans for ventilation. I use a mask now. And I try not to sit painting for more than an hour at a time.

Limit: A good share of the supporting comments are jokes about Warhammer, Magic the Gathering, and Gunpla draining wallets and shelf space rather than physical-harm claims, so the actual health evidence rests on a smaller subset describing glue fumes and posture damage.

What the pattern means: Shell and bone carvers surface a hazard most people wouldn't guess — dust from pearl shell, mussel shell, or even eggshell settling in the lungs over decades — with one account tracing a specific case of heavy-metal poisoning to shells that had absorbed pollution before ever reaching the crafter's workshop.

What commenters described: Pearl shell cutting and polishing causes silicosis of the lungs. Bone and horn also bad.

Limit: Because it's pretty rare to do, it's not a well-known hazard, but in retrospect it makes sense — several commenters admit they'd never heard of shell-dust lung damage until seeing this thread.

What the pattern means: Fiber crafters keep circling back to a single mechanism — airborne lint and fur particles rather than any chemical — with fursuit makers and cosplayers who shave faux fur singled out as facing the heaviest exposure and coining it 'groomer's lung.'

What commenters described: If you don't wear a mask when shaving hair/fur you can develop what's called "groomer's lung" from inhaling the tiny hair particles that fly into the air.

Limit: Cosplay accounts blur the picture further, folding in resin fumes and needle-stick injuries alongside fiber inhalation rather than treating fur dust as the only hazard in the craft.

What the pattern means: The two accounts here describe entirely different injury types on the same craft — a skin reaction to raw metal that inexplicably resolved on its own, and, for a wire jeweler, a repetitive-strain injury so severe it ended her career by 25 and needed two surgeries.

What commenters described: Now they're fine. This is not because anything I was doing changed, I just stopped having a skin reaction to whatever was bothering me.

Limit: Not every case resolves as easily: a separate account describes a wire jeweler whose carpal tunnel syndrome ended her jewelry-making entirely, with lingering issues 15 years after her two surgeries.

What the pattern means: The lone account of hand-bottoming shoes zeroes in on one very specific mechanism: yanking waxed thread taut through leather so many thousand times that it can permanently curl the hand into what the commenter calls 'trigger fingers,' not from a single mistake but from sheer repetition.

What commenters described: Shoemaking (especially bottoming - sewing on the soles by hand) can wreck the nerves in your hands irreparably as you pull the threads so hard so many times making a pair. You can get something called "trigger fingers" where your hands are curled like claws.

What the pattern means: The single nomination for perler beads is about the ironing step, not the beads themselves — heat releasing fumes that a commenter warns accumulate to harmful levels in any room without proper airflow.

What commenters described: When you iron them, toxic fumes will build if there's no proper ventilation. Long-term exposure to these vapors can cause damage to our body.

What the pattern means: Textile dyeing's single mention distinguishes between fiber types rather than treating dye as one hazard — protein fibers like wool needing a sustained acid boil are flagged as the riskier process compared to plant-based cotton dyeing.

What commenters described: If you dye either plant based fibers like cotton or animal fibers like wool, you need ppe and ventilation, especially with wool and other protein based fibers that need a sustained boil with an acid.

What the pattern means: Two separate harms run through this thread: solvent and VOC fumes that irritate the lungs during long print or cure sessions, and a cumulative acrylate contact allergy that can eventually end someone's participation entirely. Once posters took the risk seriously, the fix was consistent — a sealed enclosure, exhaust fan, and an actual respirator cartridge, not a paper mask.

What commenters described: I have an enclosure around mine with ducting and a $20 extractor fan propped outside my garage that runs 24/7. Works great... Basically $100 and the problem goes away.

Limit: Ventilation doesn't fully solve it — one commenter described a coworker whose acrylate allergy got so severe she had to wear driving gloves just to touch her own steering wheel.

What the pattern means: Long-time oil painters describe a spectrum of solvent damage, from nosebleeds and career-ending sensitivities to old-timers who can't pinpoint what's wrong but insist “something ain't right” after years of gamsol exposure. Several responded not by adjusting technique but by abandoning the medium outright, switching to acrylic or water-mixable oils.

What commenters described: Water-mixable oils are more commercially available now, though they've been around since the 80s. This is what I use as they don't require solvents, which I have a high sensitivity for.

Limit: Odorless mineral spirits like gamsol remove the smell that would normally prompt someone to ventilate, so people report getting an irritated throat and dizziness from exactly the solvent they assumed was the safe one.

What the pattern means: This thread turns into an actual physics argument over whether lead vaporizes below its boiling point, and the chemistry commenters walk through shows toxic lead oxide forming around 482°C — well under solder's 1,740°C boiling point and squarely within reach of the cheap, uncalibrated irons many hobbyists run hot.

What commenters described: I've been making and building electronics for 20 years, and had significant exposure to acetone... and isopropyl alcohol... I'm also extremely asthmatic. Neither has caused any worsening of my condition or an attack. You'd have to really confine yourself for extremely long periods.

Limit: Cheap soldering irons often lack any temperature gauge and get cranked to max wattage for bigger joints, so a hobbyist can be well past the recommended sub-450°C threshold without ever knowing it.

What the pattern means: Pilots flag leaded avgas as an occupational exposure most outsiders don't associate with flying, noting the FAA's 2030 phase-out target is running into real compatibility and corrosion problems with unleaded replacements. Others worked through the actual numbers and put general aviation's death rate at roughly twice motorcycling's per year, a gap that narrows once pilot error gets factored out.

What commenters described: The apples-to-apples stats show very similar risk per hour of GA flying and motorcycle riding. If you remove pilot error from GA, it goes down 50%.

Limit: Radiation exposure for flight crew is real but poorly tracked — one commenter noted the lack of US monitoring data means claims linking it to specific cancer cases stay anecdotal rather than confirmed.

What the pattern means: Potters here draw a firm line between casual hobbyists, who most agree face low silicosis risk because it's dose-dependent, and production potters or factory workers who don't get that cushion. The fix people describe isn't specialized gear so much as habit — wet-mopping the studio so dried clay dust never becomes airborne in the first place.

What commenters described: My understanding is that hobby potters are at very little risk of silicosis in most cases. Production potters (and anyone else who works with silica materials as a profession) are the ones really at risk without proper PPE.

Limit: Old glaze supplies carry a separate hazard wet-mopping can't fix — one commenter mentioned finding literal thorium mixed into inherited materials.

What the pattern means: Formal training — art school ceramics, a stone-carving class — comes through as genuinely rigorous here, down to a professor whose own chest X-ray reportedly showed glittering flecks of powdered glass in her lungs. Tradespeople doing the same dusty cutting outside that training show the opposite habit, with several commenters describing contractors who dry-cut tile in driveways despite knowing better.

What commenters described: Next one you do get a saw shack. It's a tarped enclosure for your wet saw.

Limit: An N95 isn't rated for asbestos-contaminated material — commenters distinguish it from the P100 that's actually needed when cutting older tile of unknown composition.

What the pattern means: Playa dust gets top billing for the physical toll, on both lungs and gear, but the comments spend just as much time on how one week in the desert balloons into a year-round cycle of precompression, decompression, fundraisers, and regional burns for anyone actually running a camp.

What commenters described: You CAN definitely just show up with some camping gear and food / water for a week and have fun with minimal work, but for many burners it is a hobby that takes up a shitload of time.

What the pattern means: The danger performers describe isn't the obvious one — catching fire — it's aspirating unignited fuel droplets into the lungs, summed up by one instructor's warning that it's “not IF you'll get chemical pneumonitis, it's WHEN.” That line alone was enough to push at least one commenter to quit the hobby, even after already switching to a safer fuel.

What commenters described: Ultra pure lamp oil is safest (swallowing small amounts isn't seen as a significant health risk).

Limit: Even properly distilled lamp oil isn't risk-free — one performer noted its high LD50 doesn't account for chronic exposure, so repeated internal contact still isn't good for you.

What the pattern means: The exposure gap here runs backward from what a client might assume — gloves protect a stylist's hands, but it's their lungs absorbing the ongoing dose from hairspray, keratin fumes, and perm chemicals, with one commenter's aunt developing COPD despite barely smoking. A former salon owner adds that nail-chemical regulation is thin across the EU, US, and elsewhere alike.

Limit: One former salon owner is careful to separate the nail-thinning fungal damage from repeated use — real, but “not a real killer, just a health issue” — from the cancer-linked chemical exposure she considers the bigger concern.

What the pattern means: One commenter's own diagnostic scare shows how murky this exposure can get: months of tests for a suspected progressive lung disease traced to compost mold eventually turned out to be ordinary asthma, though the ordeal left them cataloguing how many everyday activities can trigger the same reaction. Others point more simply to grain and hay dust as the classic trigger after decades on a farm.

What commenters described: This reinforces my reasoning behind wearing masks when working with hay on the farm. I don't care how many people call me Darth Vader i've seen what that kind of exposure did to my dad after 40 years.

Limit: The scare in that case resolved as ordinary asthma rather than the feared progressive disease, a reminder that these symptoms overlap with far more common conditions.

What the pattern means: This entry reads more like delayed worry than active complaint — someone who ran a wet darkroom for fifteen years with little thought now looks back and wonders what the fixer did to their body, while another jokes that skipping gear regularly means “stuff other than film may develop.”

What the pattern means: One crafter describes an immediate reaction to cyanoacrylate — chest tightness and wheezing within hours of gluing — and responded by cutting back to occasional outdoor use rather than giving up super glue entirely. E6000, used heavily by rhinestoning dancers and showgirls, gets flagged in the same thread as a separate respiratory hazard.

What commenters described: So I only use it rarely and if at all take it outside into the fresh air.

Limit: The commenter admits they've “often wondered about the long term effect on people who use these products regularly in non ventilated conditions” — a question the thread never actually answers.

What the pattern means: Both comments here skip the detail and go straight to the verdict: spraying a paint gun unprotected is called “gambling” outright, and even outdoor spray-paint art still needs a mask because open air doesn't fully clear the fumes.

What the pattern means: This is the category's one entry about acute lab-chemistry danger rather than slow dust or fume exposure — the commenter warns that people new to brewing biodiesel from used cooking oil routinely underestimate what methanol, lye, and potassium hydroxide can do, on top of the volatile intermediate compounds the reaction itself produces.

What the pattern means: Unlike almost everything else in this category, wet-plate's traditional chemistry is acutely lethal by design rather than slow-building — a potassium cyanide fixer, silver nitrate that can blind on contact, and explosive ether for the collodion — yet a small community still works this way purely for the blue-UV look only the process produces.

What the pattern means: The single account here ends in a death, not a near-miss: a commenter recounts a friend's house-painter father developing fatal lung complications from a career spent behind masks that simply weren't rated to keep the fumes out.

What the pattern means: Commenters keep circling back to specific toxic species (cedar, walnut, purpleheart, cocobolo, mesquite) and to relatives who developed lung, sinus, or throat cancer after decades of maskless carpentry, though several argue hand tools throw off dust too coarse to inhale and that a properly sealed respirator brings the real risk down to something manageable.

What commenters described: I have a half face mask respirator with p100 filters that I leave hanging on the entrance to my shop. Wear it 100 percent of the time I'm working in there.

Limit: A woodworking podcast episode cited by one commenter found dust exposure can double or triple risk for a few rare cancers, but concluded the absolute risk stays very low, with allergy-type sensitivity to specific woods being the more realistic concern.

What the pattern means: Welders describe a wider blast radius of harm than the obvious sparks and fire: arc-flash sunburn through an unbuttoned collar or from feet away, temporary blindness from a lifted hood, and hexavalent-chromium or zinc fumes that trigger flu-like 'metal fume fever,' with several tracing skin cancer, melanoma, or Parkinson's-like manganism directly back to a welding career.

What commenters described: I wear a Half Mask respirator under my Hood no matter what type of welding I'm doing, and my filters end up dark grey at the end of the week. PPE is cheap.

Limit: One commenter pushes back that helmet lens shade has nothing to do with UV protection for the eyes — untinted safety glasses worn underneath are what actually stop arc-flash getting in around the edges.

What the pattern means: Most replies to this thread just typed the word 'smoking' and moved on rather than elaborating, but where people do qualify it they draw a line between an occasional cigar-lounge visit or a pipe smoked once a month and a daily cigarette or vape habit, with one ex-smoker calling it flatly one of the worst decisions of his life.

Limit: A pipe smoker who partakes only every month or two frames his own habit as low-frequency rather than compulsive, suggesting some commenters judge the risk by how often the habit happens rather than by the substance alone.

What the pattern means: The recurring lesson here isn't dust or fumes but a single counter-intuitive rule repeated almost word for word by strangers: never wear gloves near a lathe, drill press, or any other spinning tool, because a snagged glove drags the whole hand into the machine instead of just tearing skin — several commenters independently reach for the exact term 'degloving' to describe the outcome.

What commenters described: Noooo If you need some sort of protection with rotating tools (for example, when I'm sanding or polishing a piece of jewelry with the dremel it gets HOT) use finger cots instead of gloves.

Limit: A former railroad machinist describes his employer's blanket safety policy mandating gloves at all times in the shop, forcing him to fight 'safety observation' write-ups every time he removed them to run a lathe safely.

What the pattern means: The obstacle described isn't ignorance of silica or gypsum dust — tradesmen already call it something that will 'shred your lungs' — it's a workplace culture where skipping a respirator reads as manly, and multiple commenters say only an on-site safety inspector with real authority to send people home actually changes anyone's behavior.

What commenters described: If they were unable to defend why they did not need certain PPE or safety measures on a site, they would get laid off in incremental times... people straight up feared her when she showed up onsite.

Limit: One former bricklayer who worked entirely without a mask or gloves for two summers reports only callouses and no lasting injury, a counterexample the same thread otherwise argues against.

What the pattern means: The one account behind this entry frames heavy machinery as physically destructive rather than slowly toxic — a hobby that wears down the body fast — and draws a deliberate contrast with something like a home music studio, which the same commenter says won't kill you but will still cost you your hearing over time.

What commenters described: anything to do with heavy machinery, quick way to destroy your body.

What the pattern means: The single supporting account ties soft pastel's danger to two exposures stacking on each other rather than one — the friable pigment dust itself and the aerosol fixative sprayed over finished work — and cites multiple older pastel artists personally known to the commenter who developed serious lung disease from the combination.

What commenters described: Have known multiple older soft pastel artists with severe lung issues from repeated exposure to both pastel dust and the heavy metals in the older compositions.

Limit: The account specifically pins the heavy-metal risk on 'older compositions,' leaving open whether reformulated modern soft pastels carry the same danger.

What the pattern means: This entry surfaces two separate hazards from one commenter rather than a single chemical story: the expected long-term lung risk from sanding and stripping furniture in an unventilated garage, plus a more acute and less obvious fire risk, since some paint strippers and gel stains can self-ignite on a discarded rag.

What commenters described: ALWAYS soak rags, paper towels, foam brushes, any disposable thing you used into a bucket of water before you throw it away. Don't burn your house down for a thrift flip.

What the pattern means: Rather than describing a hazard unique to bookbinding, the single account here extends the thread's dust-and-chemical theme to paper crafts by name, arguing ink, glue, and wood dust put printing and bookbinding in the same exposure category as the woodworking and resin hobbies already under discussion.

What commenters described: This extends to paper as well. Printing, bookbinding. It's all ink, glue and wood dust.