21 Facts About the Human Body That Will Make You Wonder How We’re Not All Dead

‘If our internal temperature changes just a little bit, we die’
21 Facts About the Human Body That Will Make You Wonder How We’re Not All Dead

The world is such a fragile place. At any time, a building might fall apart, industries could collapse and it’s entirely possible for Beyoncé to release a mediocre album. The world itself will eventually succumb to some kind of unexpected but definitely fiery death. You know what they say: There’s no tropy like entropy.

But maybe one of the most fragile things in the universe is our stupid human bodies. We’re all schlepping our consciousnesses around in sloppy sacks of meat that could break down in any number of ways in the blink of an eye, or possibly due to the blink of an eye.

That’s why user nathaliuw asked r/AskReddit, “What medical fact makes you think, ‘How the hell does the human body even manage to stay alive?’”

therealhairykrishna . 26d ago Sharing the air hole with the food hole is a terrible engineering design.
LatestLTU . 25d ago That even one tiny clogged artery/vein can kill you
palindrome4lyfe . 25d ago We require sodium for survival, but we do not produce any on our own.
htndev . 26d ago The fact that our bones can heal themselves, but teeth can't
AgitatedPatience5729 . 26d ago Your stomach contains acid powerful enough to dissolve some metals.
cashmerered e 26d ago . Edited 25d ago The human digestive system is pretty primitive compared to animals, this is why we have to eat so many different kinds of food and animals don't
Spidermeniusz . 26d ago the heart beats continuously for an average of over 80 years, without a single moment of interruption, it's amazing
paulD1983R o 25d ago Your appendix, that we currently don't even know what it does, can blow out at any time for any reason and kill or seriously injury you.
m_e_hRN . 25d ago Your eyes have a separate immune system from the rest of your body, and if your body figures that out it'll attack your eyes
Puzzleheaded_Cell428 . 25d ago The fact that humans need to sleep basically a third of our lives. All that time not contributing toward our survival and (in prehistoric times) being vulnerable to predators.
Armydillo101 . 25d ago Our bodies have ~36 trillion cells, each with a chance of becoming cancerous And yet, not everyone has cancer
caliphone . 25d ago The human body is so covered with germs, inside and out, that the minute we die, we begin to rot. That's because our immune systems work tirelessly to keep bacteria at bay.
FlySilently . 25d ago Been awhile since I did my gross anatomy cadaver lab course but still remember being just a little freaked out by the phrenic nerves. You mean THAT tiny little string is keeping me ALIVE?!?
flooftumbleweeds 25d ago Your immune system can wake up one day and decide, in various creative ways, that it hates you and that various parts of your body must be either destroyed or prevented from functioning correctly.
Namerakable . 25d ago . Edited 25d ago By age 30, most people have enough spinal deterioration to be seen on MRI. It always amazes me how much we suffer with back issues from walking upright and we just haven't adapted properly to that - along with all the other issues we get from posture, like the ability to choke more easily.
thegeeksshallinherit 25d ago The fallopian tubes don't really communicate with the ovaries. The ovary literally just tosses out an egg into the abdominal cavity with the hope that the tube will catch it. I don't understand how this is the system that won out.
26d ago Nicestbitchintown Pregnancy and childbirth in general. My placenta tried to kill me and my baby twice during my pregnancy and my pelvis thought it would be fun to be stiff so my baby had no room to be delivered. Everybody says nature has a plan but I'm convinced nature has no plan at all!
ragtopponygirl 26d ago The circulation of the heart is pretty EXACTING. Not body circulation but the vasculature that supplies the heart muscle itself with it's circulation. Not to mention the exacting electrical conductivity of the heart! On one hand, the heart can compensate for a LOT of disruptions to either of these two functions and still keep a person alive but on the other hand you can be killed by a bout of constipation causing excessive vagal nerve stimulation! It's insane and miraculous! Lol
wanderingstorm 26d ago your brain is designed to protect itself at all cost - which is often eventually what kills it. If your brain starts to think it's in trouble, it starts to protect itself at the cost of your organs. It'll shut down your body in order to preserve itself. Eventually enough of your body gets shut down that it can't sustain the brain anymore anyway.
DrForrester87 . 26d ago If our internal temperature changes just a little bit, we die.
Jimehhhhhhh . . 26d ago The human body has about 30-40 trillion cells, all working in synchronisity or we die

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