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40 Cool But Pretty Disturbing Facts About The Human Body That Not Many People Know About
The human body is a crazy thing. After evolving for about 6 million years, our bodies that include 206 bones, a couple gallons of blood, around 600 muscles and much more, are capable of incredible things. We might not all be climbing Mount Everest or competing in the Olympic Games, but every single one of us has a body that is working incredibly hard to keep us alive. And while we spend our entire lives in these fascinating skin suits, many of us don’t actually have a great understanding of how they work.
That’s why one Reddit user, Alwaysclimbing5, reached out asking others to share cool facts about the human body that a lot of people don’t know. Readers chimed in with fascinating information, including anything from how we can be born with extra ribs to how sensitive our noses are to the scent of rain, so we’ve gathered the most interesting responses down below for you to read, as well as an interview with Dr. Scott Ross about some of the craziest things he knows about the human body. We hope you'll enjoy your daily dose of biology and that you learn something new about yourself while you're here. Don’t forget to upvote the facts that really blow your mind, and then if you’re interested in finding out even more about our bodies, check out this Bored Panda piece next.
This post may include affiliate links.
#1
Lactose intolerance is a normal gene. Being able to drink milk is a mutation.
How much do you know about the human body? Chances are, unless you work in the medical field, many of our bodily functions are a mystery to you. No matter how well you paid attention in freshman year biology, there is a reason why it can take over a decade to become a doctor. Our bodies are incredibly complex. Adults have more than 46 miles of nerves and over 60,000 miles of blood vessels inside of us, while our brains have about 100 billion nerve cells. Not to mention how intelligent we are and how we function based on free will and make choices in accordance with society, rather than simply following impulses without any thought process.
But as previously mentioned, our current forms took millions of years to evolve. Perfection does not happen overnight, right? Most scientists agree that there were about 15-20 different species of “early humans” before us, with Homo sapiens becoming, for the most part, how we are today about 300,000 years ago. It makes sense that during all of that time our bodies became increasingly complex, particularly our brains, but it certainly makes it hard for scientists and doctors to master their understanding of the human body today.
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#2
5% of people never get a headache. F**k those people.
Roland Gosselin 2 years ago
I am part of the 5%, and I know I am lucky. But I'm super bald and I have kidney stones, so I guess things even out, all in all... :)
We reached out to Dr. Scott Ross to hear what the craziest fact he knows about the human body is. "If a person donates half his liver to a person in need, the donor's liver can regenerate to its full size in about 6 months," he told us. That's definitely something I did not know, but I'm glad I know now! We also asked Dr. Ross what makes the human body so special. "The complexity of the human body from the fertilization of the egg by the sperm to development and then the interaction of all the organ systems is truly a miracle," he told Bored Panda. "Whether it be the chemistry of food digestion, the physics of joint motion or the functioning of the human brain, every aspect of the human body is truly amazing."
Lastly, we wanted to know how much of the human body is still considered a mystery. "It is impossible to know what we don't know about the human body but suffice it to say, we continue to learn new things about the body as research and technology advances." I cannot even comprehend everything that doctors and scientists already know, so it is mind-blowing to think that their education never ends. Thankfully, it's not my job to know, so I can always go to experts like Dr. Ross to find out what's causing that strange tingling in my elbow.
#3
If we were an RPG character, our main stat would be endurance.
We are, by animal standards, hellishly undying and unrelenting terrors, these Terminator-esque nightmares that just DO. NOT. STOP.
So ancestrally we are persistence hunters. That is, our main tactic for catching prey without fancy weapons was to just run them down, especially in our way-back home of the African desert. You can still see it, all over the human body.
We are nearly hairless. This lack of insulation means better heat dissipation. We have a *ton* of sweat glands, next to other mammals. Again, heat dissipation. Another one is our two-legged gait - walking for us is technically just a series of controlled falls. We let gravity do half the work, and as a result use up fewer resources and generate less heat (quadrupeds, on the other hand, have to do more work with more legs).
I mean, imagine being a more-or-less gazelle of half a million years ago. You're eating, doing your thing, when this predator arrives, so you run off. Now most predators, they'll only chase for a short distance and then call it a day (watch cats, for instance). But this one... here he is again. So you run. He returns. You run again. He returns. You're getting hot - you have to stop and pant to lose heat, but he just keeps jogging. You run. He keeps coming. You're tired - you're fast, but not for very long, and this stretches your limits.
Eventually you just lay there, exhausted and heat-stunned, and this ludicrous hairless monkey just jogs on over and kills you.
That's our claws, our sharp teeth, even without our technology and tool-making. We simply don't stop.
There are many aspects of being a human that makes us unique to other creatures, so we consulted Live Science to see what they think the top 10 traits that make humans special are. First, they mention our speech as a unique characteristic of humans. They explain that essentially, the size of our brains makes it possible for us to have a wide vocal range and precise control over our vocalizations. “In simple terms, primates with bigger cortical association areas tended to make more sounds," says Jacob Dunn, an associate professor of evolutionary biology at Anglia Ruskin University. This special feature has allowed our species to develop over 7,000 different languages.
The fact that we walk on two legs is also unique compared to many species. Having our hands free while walking makes us capable of doing multiple things at once, like using tools (or let's be honest, texting and walking). However, Live Science notes that there are downsides to this trait as well. The way our bodies evolved to walk upright has made human birth particularly dangerous compared to many other animals. Our pelvises are not made for pushing out babies with large brains, and the lumbar curve in our spines makes us prone to developing back pain.
#4
When you are exhausted and go to bed your body shuts down faster than usual. That 'jerk' or 'kick' that your leg makes is a signal from the brain to make sure you are not dying. Your body takes a a while to slow down to sleep but whilst exhausted your brain double checks to make sure you are still alive by sending a message from your brain to to the bottom of your body to check if your nerve sytem is still functional. This is usually a quick kick of your predominant leg.
#5
Natural redheads require increased doses of anesthesia, due to some connection with the mutated melanocortin-1 receptor. I’m a natural redhead myself, and developed a fear of dentists because I’d always feel what they were doing!
Eventually I had an issue that couldn’t be ignored, and had to find a new dentist. At my first visit he took one look at me, and said “You’re a real redhead, huh?” “Yup.” “(Hygienist), get me 4x the novocaine!” I knew I’d found my man, and he’s been treating me ever since... also shed my fears, since dental work is much less unpleasant when you’re actually numb before they start.
Winter Eleven 2 years ago
I'm not a red head but still feel everything during a dentist appointment so i changed 7 so far. They still don't believe me when i say that thing doesn't work, never felt that numb lip or whatever
#6
Breastmilk will produce antibodies to help baby fight off disease. It’s thought that’s babies saliva enters the nipple, mums body tests for any undesirable bacteria, then produces milk to help fight it off.
For this reason, it’s not unusual for breastmilk to look different when baby is sick. Sometimes very dark yellow and thick, almost like colostrum. It also contains different hormones depending on the time of day, and is antibacterial. It is a living liquid
Compared to most other mammals, humans are also relatively hairless. I know what you might be thinking, your husband has the hairiest back you have ever seen or you believe that your legs are covered in fur. But if you compare yourself to a bear or a chimpanzee, you might be feeling smooth as silk. We used to have much more body hair, but apparently, about 2 million years ago, an adaptation caused our body hair to “miniaturize”, while another adaptation caused us to have many more sweat glands than most other mammals. Today, these adaptations make it much easier for us to cool off. So as much as you might despise returning home from a run dripping wet, know that we are lucky to have developed all of these sweat glands.
#7
Really late but I discovered this thing during my thesis.
We were researching patients with neurological problems and people who had brain injuries and we found a woman in her 30 that had had part of her brain removed. More specifically the area that activates when you move your body.
Well she was moving and talking with just some minor missteps and theoretically it was not possible, she was paralyzed in the first 3 months after the operation (she was caught in a car accident if I remember correctly).
We were trying out a new scanner for the brain and we found out that an area of the brain that wasn't supposed to work and control the movement was doing just that. The occipital area (usually controls the vision) was now working as a motor control area.
The brain is really amazing...
Huddo's sister 2 years ago
Many times people's brains can reorganise and change pathways to allow them to resume funtions.
#8
When were in an unfamiliar environment we sleep with half our brain at a time kinda like sharks and that's why we wake up easier.
#9
I work in an ER and a guy came in because he had non-stop hiccups for six days. Every 45 seconds or so he would hiccup. He was going insane because he couldn’t sleep or focus and had a hard time eating.
After running tons of tests and almost giving up hope on helping this guy, one of the nurses looked in his ears and found q-tip cotton stuck inside and as soon as the cotton was removed, the hiccups stopped completely.
Dude was so relieved he cried.
Due to our mostly “naked” bodies that are not fully covered in hair or fur, we have developed a need for clothing to keep us warm and protected from the elements. And while this is not a solely human trait, as chimpanzees have been documented wearing “necklaces” and “earrings”, those were purely for aesthetic reasons. We often need clothing to shield us from cold weather or rain and to protect our feet from being damaged on the ground. Humans are also required to wear clothing to be part of most societies. Animals don’t stigmatize the naked body, but for some reason, most humans do. Whether you agree with the requirement to wear clothing or you would rather live in a nudist colony, it is certainly one more way that humans stand out from the pack.
#10
When we get sunburn, that's not the heat of the sun that's hurting us most of the time, but it's little skin cells killing themselves to protect us from skin cancer.
Not so cool if I think about it.
similarly 2 years ago
Folks: protect yourself from the sun! I thought it could never happen to me, but it did: basal cell carcinoma, a little star-shaped wound on my forehead that never seemed to heal. While looking through old photos, I suddenly realized it had been there for 3 years! I named it "Spot".
#11
Archaeologist here.
You can give birth after you've died.
Occasionally we will come across a really confronting burial where the skeleton of an unborn child is halfway through its mothers pelvis. Generally what happens is the woman has died before giving birth and after burial a build up of gasses from decomposition forces the baby out. We refer to this as "coffin birth".
#12
Eye immune privilege: Your immune system doesn't know your eyes exist. Theres a chance that if you get an eye injury or an infection near your eyes the immune system will think your eyes are a foreign body and you'll go blind.
Phoebe Bean 2 years ago
Not able to sleep tonight after reading such horror stories about the human body.
One of the most special things about the human body is our famously overdeveloped cerebral cortex. It makes up over 80% of our brain’s mass and allows us to use complex, higher level thinking skills, such as making decisions, executive control, emotional regulation and using speech. Our amazing brains are responsible for only 2% of our total body weight, but they use up more than a quarter of our body’s energy. And although we don’t have the largest brains in the world, that would be sperm whales with brains weighing up to 20 pounds or 9 kilograms, we do have the most impressive brains. With our complex reasoning abilities and intricate societies, we are definitely among the most intelligent species.
#13
The bone that supports your eyeball, called the orbital floor, is paper thin and has a large empty cavity, called the maxillary sinus, on the opposite side. When you get hit hard in the eyeball, instead of your eyeball itself rupturing, the bone underneath your eye breaks, which is called an orbital floor fracture. This releases the pressure from the impact and saves your eyeball. If you crush a beachball against a concrete wall, you can pop it, but if you try crush it against a styrofoam wall, the wall breaks but the beachball is fine. An amazing evolutionary adaptation to protect your eyesight.
Pirates of Zen Pants 2 years ago
Who here read the word "eyeball" and immediately noped out of that paragraph?
#14
You mostly breathe out of one nostril at a time, and the ‘dominant’ nostril switches every hour or so.
#15
You just need to focus on the time you want to wake up and our hypothalamus would wake us up at the exact same time.
Another feature of the human body you might want to give yourself a hand for developing is, well, your hands. We may not be the only species that has opposable thumbs, as most primates do, but our thumbs are particularly large. It is unique that we can bring our thumbs all the way across the palm of our hands, which makes it much easier for us to pick up objects than most other primates. We also have impressive muscle control in our hands, allowing us to write precisely, play sports with accuracy, provide excellent massages and create amazing visual art. We are actually pretty lucky to have such versatile hands. I'd like to see a monkey type this paragraph or play the piano!
#16
Women are actually programmed to forget the pain of child birth after a few months or so. If this didn’t happen, most women would only end up having one child, which would eventually lower the population.
Katrin Krueger 2 years ago
I think we're unable to physically remember ANY kind of pain - we're just thinking, yeah, that hurt me badly back then, but cannot re-live actual pain.
#17
You can see your nose all the time, your brain just chooses to ignore it.
#18
We have an internal regulator that prevents us from using our full strengh. Or muscles usually only work at about 60% max of what we are capable off.
In extreme life and death situations these regulators stop and we are able to use our full strengh. This is how the parts where people tipped over cars and similar come from.
These regulators are because at full strengh we heavily damage our bodies. Essentially, you could lift something to the point where it is either lifted or your arm just breaks instead. I believe there has also been someone who ran so hard his leg broke.
Phoebe Bean 2 years ago
My internal regulator only allows me to go around the block when it comes to exercise.... LOL
The ability to blush is also a uniquely human characteristic. Darwin referred to blushing as “the most peculiar and the most human of all expressions”, but perhaps he never had someone tell his crush that he liked them in middle school. Nothing peculiar about the reaction of blushing then; it felt like a perfectly appropriate response in my opinion… But there is a theory that blushing was developed as an evolutionary response to acknowledge a mistake or embarrassment without having to address it verbally. “A prerequisite for embarrassment is to be able to feel how others feel — you have to be empathetic, intelligent to the social situation," says Ray Crozier, an honorary professor at Cardiff University’s School of Social Sciences. If the person you’re talking to can see that you are clearly aware of your mistake, there is no need to bring it up. I only wish everyone was polite enough to take blushing as a silent signal, rather than commenting, “Wow, you look really red!”
#19
If you lose a hand and then have it reattached, even if all the feeling and movement ability comes back, your skin on that hand will never get wrinkly in water again. It's lost the ability to do so.
Also, the reason our hands get wrinkly after too long in water is to give us more grip on slippery surfaces.
Brandon Marlowe 2 years ago
Okay. I must confess that I doubted this one so I did a quick Google research session and TIL that it is correct. Thank you BP! https://www.scientificamerican.com/article/why-do-our-fingers-and-toes-wrinkle-during-a-bath/
#20
Your liver can regenerate, and much faster than you think. I had a quarter of my liver removed, and a month later it was back.
#21
A small percentage of people are "Super Sleepers" and are fully recharged after 2 to 4 hours of sleep each night. They get to burn the candle at both ends!
Phoebe Bean 2 years ago
I envy that because I need at least 8 hours to fully recharge to be my optimum best.
Something else that is fascinating about being a human is our long childhoods. While some other species have long lifespans like Asian elephants and blue-and-gold macaws, we are special in the way that it takes us so long to mature. Our childhoods are twice as long as chimpanzees, and even earlier versions of humans reached adulthood faster than we do today. There are several possible explanations for this, including the size of our brains and our long lifespans.
According to Associate Professor of Psychology Suzana Herculano-Houzel at Vanderbilt University, “It makes sense that the more neurons you have in the cortex, the longer it should take a species to reach that point where it's not only physiologically mature, but also mentally capable of being independent. The delay also gives those species with more cortical neurons more time to learn from experience, as they interact with the environment." I sometimes envy kids for their freedom and lack of responsibilities, so I am feeling really lucky right now that I'm a human. At least I got 17 years to enjoy being a kid, rather than a measly 3!
#22
Your heart rate increases about a minute before partaking in exercise. It is known as the anticipatory rise and happens involuntarily.
#23
The microscopic mites living on your face feeding off the oil glands.
You can't see them, but they're there. They are microscopic mites, eight-legged creatures rather like spiders. Almost every human being has them. They spend their entire lives on our faces, where they eat, mate and finally die.
There are two species of mite that live on your face: Demodex folliculorum and D. brevis.
It's cool cause that means I'll always have some friends with me.
#24
Blind people process Braille in their visual cortex. Amazing example of neuroplasticity.
Humans, particularly females, are also very fortunate to have long lives after giving birth, without being expected to create more babies until they die. It is common for mammals to keep populating until they simply can’t go on, and even many species of octopuses die once they have mated and ensured their eggs would survive. But giving birth as a human is not supposed to be a death sentence. Of course, it can be in tragic cases, but most mothers get to live for many decades after having kids. Having kids is considered the beginning of many people’s lives, for individuals who view raising a family as their greatest dream. We are quite a lucky species because so many of us get to grow up with grandparents, sometimes even great-grandparents.
#25
When you first set your sight on the seconds of a watch (or anything with a rapid regular movement) you will sometimes feel like the first second lasts a little bit too long. It's because your brain replaces the motion blur that happens when you moved your sight from wherever it was to the watch with a fixed image.
And the cool thing is that it replaces it "after the fact", or rather gives you a very short false memory that you were already watching the watch while your eyes were moving, making that first second seem longer.
It's called Chronostasis.
#26
Some humans do not feel any pain and have to be closely monitored because they can get sick/injured so easily and not even realize.
#27
When you're a baby you have several defence mechanisms that stop you from drowning: you reflexively hold your breath when underwater and your heart rate and consumption of oxygen decreases, allowing you to last significantly longer underwater than an adult.
smugdruggler 2 years ago
That automatic breath holding is called the Mammalian Dive Reflex (MDR).
While we tend to view ourselves as completely different from animals, the reality is that we just evolved in a different way. Our bodies are so special and incredible, and we are lucky to have complicated enough brains to have some level of understanding about how they work. We hope you're enjoying this list of fun facts about your body. Be sure to keep upvoting all of the facts that blow your mind, and let us know in the comments if you have any other little-known facts about humans that you would like to share. I'm sure it's been a long time since many of us have taken biology, and we would love to have a better understanding of ourselves.
#28
A baby's body has about 300 bones at birth. These eventually fuse (grow together) to form the 206 bones that adults have
Benita Valdez 2 years ago
I have 208 known bones in my body. I have bilateral cervical ribs on each side (its considered a birth defect). Doesn't do anything, no benefit but in rare cases can cause pain by messing with nerves there. And I say known because I haven't had my entire body x-rayed or MRI'd.
Lazy Panda (she/her/hers) 2 years ago
I have an extra lumbar vertebra, which is apparently a common variant but still not "normal"
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Faye Przepioski 2 years ago
Accessory navicular bone. When one of the bones in the feet fails to fuse. Less than 20% of the population has this. People don't usually know until THEY KNOW. lol. It hurts when you find out the hard way and generally requires surgery to remove with tendon reattachment. I have both removed. First one due to injury, second due to wear and tear. So for a while I had 208. Now just the normal amount, although two are a tad smaller than they should be.
Mabelbabel 2 years ago
The skull bones in a baby aren't fused together, unlike adults. The sutures, the gaps between the various skull bone plates are fibrous tissue sheets and flexible. The average baby skull is about 10cm diameter, and the hole in the pelvis through which the baby passes during birth is 10cm diameter, so there's little room for maneuvering. Because of the flexible sutures, the skull bones can move closer together, and even overlap a little to make it easier to fit through. It's why some babies are born with odd shaped skulls, they got squished on the way out. It usually goes back to normal in a few days.
Eva Muller 2 years ago
I have 207. My tailbones haven't fused. Born being five parts, fuses to three, but I have four. Also... are teeth considered bones? If so: I have 204 bones (I wont ever get three out of four wisdom teeth. Only one is present and it's never going to surface. The other three never developed and never will. Yay me).
Lily Francis 2 years ago (edited)
I'm not actually sure mine are bone. I think I might be made of something else because my bones don't break and the doctors nor I can figure it out and I'm willing to let them do a bone biopsy because it's too risky. I know I'm vitamin D deficient but my bones and even my skull either bend or give, they don't break. They x ray, do cat scans and MRIs and they can't figure it out and the bones are severely bent at extreme angles. And I've had 4 major closed head injuries and my skull just gets soft and mushy but there's no fractures or break's and it's almost like you can feel my brain. I'm supposed to wear a helmet all the time but I said no I'm not going to live that way! If I die, I die, I won't live in fear. I'm just different and weird but I knew that a long time ago! I have a cousin with a bone disease but his break and mine don't. They just call me the conundrum 😅
Lily Francis 2 years ago (edited)
I do have to say I've broken my toes, one finger, my dad broke 3 of my ribs and my nose and it's been broken 4 times and I'm a walking accident waiting to happen and that's not including the abuse. I'm also calcium deficient but I can only tolerate coral calcium, shark calcium or not as good, the calcium you get from Tums. But I don't believe in killing something that's endangered, like coral or sharks, just so I can have calcium, so I settle for Tums.
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Lily Francis 2 years ago
The skull are the major ones. It starts out in sections before they fuse together because, just imagine having to pass a fully fused skull through the birth canal and same with the shoulders. Everything is pretty much in place but they join and harden together as the baby grows and continues to develop.
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#29
The human body contains enough fat to make seven bars of soap.
#31
Your hands and feet alone account for more than half of all the bones in your body (106/206)
#33
Cutting the corpus callosum ( connects two brain hemispheres) can produce some freaky results. Such as your hand doing s**t that your conscious mind isn't aware of, writing a sentence or scratching an itch without knowing for instance.
Panda in the Fake South 2 years ago
There was a case where this was done to treat severe epilepsy. After the person reported they would be buttoning their shirt and the other hand would be unbuttoning it at the same time.
#36
Your bones are always wet.
#37
You're taller in the morning than the rest of the day/night.
Firstname Lastname 2 years ago
That's because my body has forgotten how much easier it is to slouch yet.
#38
Babies don't have full color vision until 5 months old!
Jennik 2 years ago
Which is why, for very young babies, books and other media with black and white or other high contrast pictures are better than pastel, pretty ones - they can't really see the pastel pictures. Even after 5 months, strong colours with clearly delineated edges are better - they help babies develop focussing skills. Save Beatrix Potter etc until they are at least a year old!
#39
There is a muscle, called palmaris longus, in the forearm missing in about 10% of the population. You can easy test if you have it by putting your pinky and thumb together, while holding your palm facing up, and flex the hand upwards. If 1 tendon is standing out more than the others that's palmaris longus.
Laura Jackson 2 years ago
I'm in the top 10% of something finally! Why couldn't it have been something like highest lotto winners or richest people in the world?
#40
We have a bunch of microplastics in our body.
What do you think ?
Izzy Curer 2 years ago (edited)
I know one. There's this phenomenon where intrusive thoughts of harming someone you love will slip into your brain at certain times, even though you would never do such a thing in a million years. For example, say you and your SO were standing on the edge of a cliff admiring the sunset, and suddenly you imagine yourself shoving them over the edge. Most people recoil from these imaginings, and some even suffer such extreme guilt from reoccuring bad thoughts they end up needing therapy, thinking there must be something wrong with them. Actually, it's perfectly normal, and in fact healthy! It's your brain's way of checking the environment for danger and making a mental note of what NOT to do. It's your instinct kicking in to protect those you love. For me, it's whenever I'm holding something heavy around my dogs. I imagine dropping it on top of them, which makes me sick, and if I actually did it, I would cry. But I know it's just my brain's way of locking onto potential danger that could happen to small creatures whose safety I have anxiety over. It's just my brain saying, "Hey, watch out for that!"
Unicorn27 2 years ago
That happens to me when I'm driving: I think of swerving into the median or oncoming car. I would NEVER, but it's comforting to know it's normal.
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Tiny Dynamine 2 years ago
As always, some of these are scientific facts, but a lot of them are things that people have made up because they've heard it from someone. Question everything, don't just believe what anyone says.
Yvonne Dauwalder Balsiger 2 years ago
Yes. It should be mandatory to at least link 1 source to support your "facts". Much is either just an urban legend to begin with or really outdated, long since disproved studies
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Deborah Chapman 2 years ago
Most adults cannot drink milk. The 80% of the population of Finland CAN drink milk without any problem. I am one of them. Thank God for my Finnish heritage!
KimB 2 years ago
I know a cool one... when you have heart disease and your arteries fill up with plaque most people have a heart attack and die without treatment (bypass surgery). Some peoples hearts produce collaterals which are new blood vessels that route blood flow around these blockages protecting the heart from damage due to lack of blood flow (this is called ischemia). So some peoples body's naturally bypass on their own...they still don't know why some people have this ability or why others don't....the human body is fascinating!
Izzy Curer 2 years ago (edited)
I know one. There's this phenomenon where intrusive thoughts of harming someone you love will slip into your brain at certain times, even though you would never do such a thing in a million years. For example, say you and your SO were standing on the edge of a cliff admiring the sunset, and suddenly you imagine yourself shoving them over the edge. Most people recoil from these imaginings, and some even suffer such extreme guilt from reoccuring bad thoughts they end up needing therapy, thinking there must be something wrong with them. Actually, it's perfectly normal, and in fact healthy! It's your brain's way of checking the environment for danger and making a mental note of what NOT to do. It's your instinct kicking in to protect those you love. For me, it's whenever I'm holding something heavy around my dogs. I imagine dropping it on top of them, which makes me sick, and if I actually did it, I would cry. But I know it's just my brain's way of locking onto potential danger that could happen to small creatures whose safety I have anxiety over. It's just my brain saying, "Hey, watch out for that!"
Unicorn27 2 years ago
That happens to me when I'm driving: I think of swerving into the median or oncoming car. I would NEVER, but it's comforting to know it's normal.
Load More Replies... Tiny Dynamine 2 years ago
As always, some of these are scientific facts, but a lot of them are things that people have made up because they've heard it from someone. Question everything, don't just believe what anyone says.
Yvonne Dauwalder Balsiger 2 years ago
Yes. It should be mandatory to at least link 1 source to support your "facts". Much is either just an urban legend to begin with or really outdated, long since disproved studies
Load More Replies... Deborah Chapman 2 years ago
Most adults cannot drink milk. The 80% of the population of Finland CAN drink milk without any problem. I am one of them. Thank God for my Finnish heritage!
KimB 2 years ago
I know a cool one... when you have heart disease and your arteries fill up with plaque most people have a heart attack and die without treatment (bypass surgery). Some peoples hearts produce collaterals which are new blood vessels that route blood flow around these blockages protecting the heart from damage due to lack of blood flow (this is called ischemia). So some peoples body's naturally bypass on their own...they still don't know why some people have this ability or why others don't....the human body is fascinating!
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