There’s no denying how impressive the human body is. It can be incredibly strong, capable of pulling off amazing feats at the Olympics. It can also endure all kinds of conditions, from scorching summers to freezing winters. And that is without even getting into everything the brain can do.
At the same time, it can also be pretty strange. So when people on Reddit and Threads were asked to share the weird things their bodies do, plenty of them had stories to tell. We’ve rounded up some of the most interesting replies below. Scroll down to read them and upvote your favorites!
#21

I can't lie down on my left-hand side, it feels like all my organs are being crushed. Totally fine on my right side.
It's not a secret, I've just never thought to bring it up with anyone. Is it just me?
It's not a secret, I've just never thought to bring it up with anyone. Is it just me?
14points
#22
I make facial expressions while having fake arguments or scenarios in my head. I’ll be walking down the street looking like I’m winning a Nobel Prize or having a breakdown, but it’s all just happening in my mind. I hope no one ever catches me.
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14points
#23
When I get overstimulated visually and audibly or am way overtired — I start seeing as though everything is moving in slow motion. I don’t even know how to describe it properly. As if a strobe light is constantly going and life isn’t moving at the proper speed.
It’s very weird.
It’s very weird.
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14points
#24
My body made a whole baby AFTER I had both of my fallopian tubes REMOVED. The same doctor who did the bilateral salpingectomy, also delivered the subsequent baby via c section, so he verified that they hadn't grown back, and there wasn't any obvious failure of the surgery.
Pretty wild!
Pretty wild!
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14points
#25
The most interesting is that after a partial nephrectomy (~75%), my kidney grew BACK. Not hypertrophy, regeneration. I was young so it was likely very lucky timing.
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14points
#26
I can feel people moving around a room even if I can’t see or hear them. I never understood why Marco Polo was a hard game as a kid.
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13points
#27
One of my daughters saliva is so acidic that it ate through her braces. We moved and I told the new orthodontist this and he rolled his eyes and said that wasn’t possible. A few weeks later he learned that it was. They had to use a special gage wire.
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13points
#28
I have fibromyalgia. The medical definition is practically pain no one can explain!
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13points
#29
Oh also—I can ‘detect mold’ in an old house/building in about 30 seconds bc I’ll get a sudden, RELENTLESS tickle in the back of my throat and start coughing (or else driving myself nuts trying NOT to cough..like eyes watering wildly, using all the self control I have to try NOT to start the coughing fit).
As soon as I get outside in fresh air, it immediately calms & stops.
And I HAVE told people about it in the past, but every single time they’re so darn indignant that their 140 year old cottage in the woods in the Northeast DeFiNiTeLy dOeSn’T hAvE mOLd that I’ve simply stopped telling people and just say I’m having a weird allergy attack.
As soon as I get outside in fresh air, it immediately calms & stops.
And I HAVE told people about it in the past, but every single time they’re so darn indignant that their 140 year old cottage in the woods in the Northeast DeFiNiTeLy dOeSn’T hAvE mOLd that I’ve simply stopped telling people and just say I’m having a weird allergy attack.
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12points
#30
Earwax just drops out of my ears randomly, I could have cleaned them 10 minutes before but it still jumps.
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12points
#31
Occasionally, while drifting off to sleep, I experience a sensation of free-falling. This results in involuntary limb movements where I strike out in all directions. I have inadvertently hit partners and my children quite forcefully because of this
It's called hypnic jerks, and it's quite intense.
It's called hypnic jerks, and it's quite intense.
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12points
#32

I have an eyelash that grows about an inch below my right eye. It only started appearing in 2018. Pretty sure that's my absorbed twin finally breaking through. I pluck him every few months to make sure he knows who's boss in this body.
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12points
#33
Derealization. I have many moments of feeling like I'm in a waking dream. It's hard to explain but my doctor told me that's what it's called.
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11points
#34
I see a lot of people mentioning random sharp pains. I used to have random, sharp, lingering pains in my abdomen that would last several minutes at a time. I never mentioned it to doctors. Except - I have an explanation.
One day I bent over to pick up my dog's poo in the morning and started feeling unwell, but okay enough for work. That stabbing lingering pain, but a bit more than normal, and some nausea. Pain on my right side, this time.
Went to work, was there an hour then I felt bad enough to go home. Told my boss, packed up my laptop, while walking out, thought, "I should go to an urgent care, not home." Got to my car, and it had escalated to "Oh no. This is ER-level." Got into my car, and "Oh no. I can't drive myself." Called a coworker who drove me to the ER, and I have *never* been through an ER so fast. Sudden abdominal pain on the right side so bad the patient is sobbing at intake just from pain + nausea? They thought my appendix burst, and so did I. Then, CT showed a massive 5cm x 7cm tumor in my liver that had filled with blood and was pressed against my diaphragm, every inhalation was pain.
They sent me home with opiates since the bleeding had stopped at that point, told me to get an MRI later. Got one a month later, and found out my liver has 30+ similar tumors in it, any of which could burst and fill with blood. It's called hepatic adenomatosis, and a rare side effect of the birth control I'd been on since age 12. The random, lingering stabbing pains were almost definitely smaller, better placed tumors bursting. I haven't felt them since going off that BC, and my regular MRIs to monitor the tumors said they shrank. So...maybe be careful about those random pains. Mention them to your doctor. Maybe it's nothing, but maybe it is something.
Edit: everyone keeps asking, I was specifically on Daysee (I think the name changed a few times, the one that only gives you a placebo every 3 months). However, this side effect is caused by *any* estrogen-containing birth control pill, so like almost all of them. But, it is very rare.
One day I bent over to pick up my dog's poo in the morning and started feeling unwell, but okay enough for work. That stabbing lingering pain, but a bit more than normal, and some nausea. Pain on my right side, this time.
Went to work, was there an hour then I felt bad enough to go home. Told my boss, packed up my laptop, while walking out, thought, "I should go to an urgent care, not home." Got to my car, and it had escalated to "Oh no. This is ER-level." Got into my car, and "Oh no. I can't drive myself." Called a coworker who drove me to the ER, and I have *never* been through an ER so fast. Sudden abdominal pain on the right side so bad the patient is sobbing at intake just from pain + nausea? They thought my appendix burst, and so did I. Then, CT showed a massive 5cm x 7cm tumor in my liver that had filled with blood and was pressed against my diaphragm, every inhalation was pain.
They sent me home with opiates since the bleeding had stopped at that point, told me to get an MRI later. Got one a month later, and found out my liver has 30+ similar tumors in it, any of which could burst and fill with blood. It's called hepatic adenomatosis, and a rare side effect of the birth control I'd been on since age 12. The random, lingering stabbing pains were almost definitely smaller, better placed tumors bursting. I haven't felt them since going off that BC, and my regular MRIs to monitor the tumors said they shrank. So...maybe be careful about those random pains. Mention them to your doctor. Maybe it's nothing, but maybe it is something.
Edit: everyone keeps asking, I was specifically on Daysee (I think the name changed a few times, the one that only gives you a placebo every 3 months). However, this side effect is caused by *any* estrogen-containing birth control pill, so like almost all of them. But, it is very rare.
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11points
#35
If I eat a heavy meal I need to be near a toilet for like 30-90 minutes because at some point in that window I will have an urge to poo that needs to be resolved within about 10 seconds of it arising.
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11points
#36
I get really bad panic attacks and it causes my entire body to get tingly and eventually lock up. my hands look like crab claws.
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11points
#37
When I was younger than I am today I had a tendency to consume various street elixirs typically in powder form....these ...uh.... white lines would keep me up, sometimes for days.
during my longest stretch I knew I'd been up for over 100 hours. and since I had not been drinking much water i became extremely dehydrated.
like... extremely
so extreme was my dehydration that my ball sack hardened and became 'shell like'....a shell that eventually cracked and then peeled off like One of those nuts Marlon Brando peels and eats in Apocalypse now... near the end.
it was, as they say, quite the experience.
I'm not in the game anymore, and there's never happened to me again. however, since no one I've ever known has described quite such an experience I feel my physical response was somewhat unique. who knows?
life is strange.
during my longest stretch I knew I'd been up for over 100 hours. and since I had not been drinking much water i became extremely dehydrated.
like... extremely
so extreme was my dehydration that my ball sack hardened and became 'shell like'....a shell that eventually cracked and then peeled off like One of those nuts Marlon Brando peels and eats in Apocalypse now... near the end.
it was, as they say, quite the experience.
I'm not in the game anymore, and there's never happened to me again. however, since no one I've ever known has described quite such an experience I feel my physical response was somewhat unique. who knows?
life is strange.
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11points
#38
When I blow my nose, sometimes it comes out of my right eye. I mentioned it once to my ENT and he said “huh, that’s weird” and moved on.
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11points
#39
Sometimes I get cramps around my heart. It hurts and I just hold still till they pass. It’s been happening off and on as long as I can remember.
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10points
#40
I get exhausted and genuinely need to lay down, been to the doctors blood tests all the stuff, everything comes back normal, I have no idea what it is, I’m not overweight and I work out but never over workout I know what I’m doing on that front and I look around at other people similar ages and I just don’t get it, even people older than me by 15-20 years don’t get tired like I do. I absolutely know something is up because it makes no sense to crash like I do but I just don’t know what it is.
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10points


