Our bodies are incredibly intricate machines, so naturally, maintaining and troubleshooting them when something goes wrong can be quite difficult. So it's important that we are at least somewhat familiar with the "user manual." Otherwise, we risk handing our health & wellness to guesswork and hearsay.
A recent Reddit post asked everyone on the platform to list the facts about our anatomy that many grown-ups still don't understand, and thousands jumped in to share the ignorance they've encountered. From growth to metabolism and reproduction, it looks like plenty of folks need to revisit high school biology.
#21

You have to wash ya a*s. Get in there all nice and deep like.
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18points
#22

That a woman's v****a relaxing and becoming more elastic is them being aroused. So many men think that "Oh she's loose, she must be a h*e" or some stupid immature c**p like that. In reality, if it feels "looser" than usual, it means she's probably very aroused and you're doing a good job. Number of s****l partners etc does not pertain to looseness at all.
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18points
#23

Anything to do with humans; the gauss curve is f*****g wide. Just because X is Y on average, does not mean you are abnormal is you are super far off. Everybody is weird in some ways.
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17points
#24

Recently got a vasectomy. I was stunned by the number of adult men who assumed you no longer ejaculate after a vasectomy. They thought “shooting blanks” meant no ejaculate comes out anymore.
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17points
#25

Hymens are broken for any number of reasons. She might bleed but probably won't on her first time.
Also going too far in general.
Also going too far in general.
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16points
#26
My wife used to run an Urgent Care. The amount of women who don't know how their reproductive organs work is shocking. The amount of men who don't know how to clean their p***s is shocking. The amount of people who don't know urine in your eye isn't a **legit** medical procedure is shocking.
EDIT: I'm a man of the people so I'll elaborate on the urine thing. This wasn't a widespread issue but it's a funny anecdote so I through it in there for fun. "Urine therapy" is a thing. It's not a smart thing but it's a thing. Some people think that drinking urine or applying it topically can treat health conditions. There was one lady who came in with a nasty eye infection. She basically told my wife, "I don't know why it's not getting better. I've been putting urine in it. Why is it getting worse?" She said it so casually like everybody was going to be on board with p**s in their eye. For those that don't know, urine is not sterile. That's a myth. And even if it was, it gets pretty gross, pretty quickly. Don't do urine therapy.
EDIT2: I almost forgot about all the people who don't know how diabetes works. Tons of people out there with uncontrolled diabetes. She once told a guy in his early 20's - who came with his mom - that he has diabetes. To his credit, he vowed right then and there that he was done with sugary drinks. Unfortunately, he vowed that it was only going to be Gatorade from now on. The best part was that he didn't say "diabetes". He said, "I got the sugars?!"
EDIT: I'm a man of the people so I'll elaborate on the urine thing. This wasn't a widespread issue but it's a funny anecdote so I through it in there for fun. "Urine therapy" is a thing. It's not a smart thing but it's a thing. Some people think that drinking urine or applying it topically can treat health conditions. There was one lady who came in with a nasty eye infection. She basically told my wife, "I don't know why it's not getting better. I've been putting urine in it. Why is it getting worse?" She said it so casually like everybody was going to be on board with p**s in their eye. For those that don't know, urine is not sterile. That's a myth. And even if it was, it gets pretty gross, pretty quickly. Don't do urine therapy.
EDIT2: I almost forgot about all the people who don't know how diabetes works. Tons of people out there with uncontrolled diabetes. She once told a guy in his early 20's - who came with his mom - that he has diabetes. To his credit, he vowed right then and there that he was done with sugary drinks. Unfortunately, he vowed that it was only going to be Gatorade from now on. The best part was that he didn't say "diabetes". He said, "I got the sugars?!"
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16points
#27

Mnemonic (or rather menmonic):
Men: starting at about 50 years of age, your age is roughly the percentage probability of having an enlarged prostate. So at 70 years old, you have roughly 70% chance that this is the case.
This is called benign prostatic hyperplasia (BPH) and while benign, it is a main if not the main cause of leaking urine, trouble peeing, s****l dysfunction, ... See your doctor about these problems, because it may be easy to treat (not always, but simply knowing may help you and your close ones with understanding too).
Men: starting at about 50 years of age, your age is roughly the percentage probability of having an enlarged prostate. So at 70 years old, you have roughly 70% chance that this is the case.
This is called benign prostatic hyperplasia (BPH) and while benign, it is a main if not the main cause of leaking urine, trouble peeing, s****l dysfunction, ... See your doctor about these problems, because it may be easy to treat (not always, but simply knowing may help you and your close ones with understanding too).
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15points
#28

A lot of people still assume if you're a tall or big dude then that reflects on all of men's anatomy.
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15points
#30

Depending on how regular your hygiene upkeep is, your belly button can have more bacteria than your toilet seat.
And now I just pissed off a germaphobe somewhere.
And now I just pissed off a germaphobe somewhere.
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15points
#31

The skin is the largest organ of the body. Not the liver, not the brain, not the intestines!
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15points
#32
What the fallopian tubes do.
I recently had mine removed after my second c-section, and was telling a friend about it and how if I ever changed my mind at least IVF was an option. Friend, who is currently doing IVF herself, argued with me and told me she didn’t understand how this would be possible. She also expressed concern of where my eggs would go without fallopian tubes. I should also add this woman is a teacher….
I recently had mine removed after my second c-section, and was telling a friend about it and how if I ever changed my mind at least IVF was an option. Friend, who is currently doing IVF herself, argued with me and told me she didn’t understand how this would be possible. She also expressed concern of where my eggs would go without fallopian tubes. I should also add this woman is a teacher….
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15points
#33

Capsaicin binds to TRPV1 receptors found on your skin, mouth, and nerves. Birds do not have TRPV1 receptors and can't taste it, which is why they can eat Uber spicy seeds. The highest expression levels of TRPV1 in the human body occur in the a**s.
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14points
#35

Testicle nerve cluster is where the ovaries would be on a female. During utero they start there and then 'drop'. If you ever need a testicle removed they go through the lower abdomen. If you get a vasectomy, you feel it in your lower abdomen, and they typically only give you a local.
Testicle cancer x2. I'm a glorified eunich.
Testicle cancer x2. I'm a glorified eunich.
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13points
#37

In Latin America there aren't many, but not washing the a*s after pooping is considered a symptom of mental illness.
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12points
#38
Yours and your sibling’s 23andMe results will be different. I can’t be the only one who thought it would be the same.
Turns out I am more Italian than my brother.
Turns out I am more Italian than my brother.
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12points
#40
Ovaries are not actually like flat off to the side like they are shown on textbooks. They’re actually bunched up and basically touching either side of your uterus.
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11points



