What’s a Fact About the Human Body That Not Many People Know? People Responded.

The human body is absolutely incredible!

I’m constantly in awe when I read about it and learn how complex we really are. It’s kind of a miracle, don’t you think?

I sure do!

What are facts about the human body that a lot of people don’t know about?

AskReddit users shared their thoughts.

1. That’s wild.

“The chance of a natural pregnancy with identical triplets is 1 in 200,000,000.

My friend had identical triplets.

It was her first time having s** and she got pregnant with triplets. I didn’t know it was so rare.”

2. Stripes.

“Humans have stripes, we just normally can’t see them. They’re called Blaschko’s lines and form along the paths of embryonic cell migration.

The stripes are sort of U-shaped down our front, V-shaped on our back, wavy on the head and face and we have basic, simple stripes on our extremities.”

3. Smart stomachs!

“Your stomach is surrounded by more brain cells (half a billion neurons) than the brain of a cat contains in total.

It’s your enteric nervous system. It controls digestion, operates autonomously, has its own memory, can handle its own reflexes, it has its own senses even.

It’s thought to have come about because of the blood-brain barrier and the main brain being locked away in the skull, a spinal column and nerves away from the critical action of nutrition.”

4. I did not know that!

“The eyeball is the fastest healing part on your body.

Let me put it in a ‘simpler’ version if you don’t believe me. The eye ball has a cornea.

Now, cutting the cornea will result in much pain, but since this part doesn’t contain blood, but only gets a supply of oxygen, it is the only fastest healing part of your body that can heal in only 24-36 hrs.

Believe me now?”

5. Bypass.

“Our bodies have the ability to perform there own bypass procedures. My grandfather went in for a scan and it showed a 100% blockage in one of his major arteries.

The image also showed a new portion of the artery starting .25” before the blockage and then rejoining the artery .25” after the blockage completely bypassing the obstructed portion. He had never had surgery before this discovery.”

6. No one likes it.

“You don’t like the sound of your recorded voice because it’s missing the low frequency you’re used to hearing.

When you talk, you hear your voice as it goes to the air and back to you ear. It also goes through your skull to your ear, and this bone conduction mechanism transmits the low frequencies better than air does.

Your recorded voice only has the air transmitted sound. That causes the dissonance between what you think your voice sounds like, and what it really does. It’s also why your voice will (almost) always be higher pitch than you think.”

7. Not just chillin’.

“The appendix is not a vestigial organ. It actually protects good bacteria in the gut.

You can live without it, but it’s not just chillin’ in there.”

8. Full circle.

“Migraine pain can lessen from vomiting.

Vomiting can cause dehydration.

Dehydration can cause migraines.

The human body is funny.”

9. All about arteries.

“We all have a major artery called the ascending aortic artery that runs down the center of our abdomen. Another artery, called the superior mesenteric artery, branches off of that.

There is a gap between the arteries that is kept open by a pad of fat, and the start of our intestines, called the duodenum, passes right through the gap between the two arteries.

Very very rarely something can happen to shrink the fat pad, and then the arteries act like a clamp and pinch the duodenum closed. This prevents anything, solid or liquid, from passing from the stomach into the intestines.

This is called Superior Mesenteric Artery Syndrome, and I had it. It is so rare that it took 2 months of doctors excluding everything else for them to diagnose me.

I couldn’t keep anything down, and went from 120 to 90 lbs. I had to have where my intestines were connected to my stomach moved to another spot, and have about 6 feet removed in the process.

This was almost 7 years ago now. Other than having to eat more than I used to in order to maintain my weight, I’m okay. That is only one of the weird, and very rare, medical conditions that I’m living with, but you’d never know by looking at me.”

10. I believe it.

“Humans feel less satisfaction when they don’t gain anything from an interaction.

In other words, you get less dopamine (or whatever feel good chemical) when you do something that basically has an equal cost and reward. This has lead me to believe that free food DOES really taste better.

It never made sense to me why cupcakes only tasted good when kids brought them in for their birthday. Whenever I’d buy them on my own they tasted worse. I guess it’s because my brain knows I spent money on them.”

11. Strength.

“Your brain regulates how strong your muscles are. If your leg muscles were to contract at full strength, they would snap your femur.

Its why people in emergencies on adrenaline can lift cars off children. Your body is capable of great strength, but it could also severely damage you, so your brain keeps you a weak, soft bag of jelly.”

12. You need that sleep.

“You will sooner d** from lack of sleep than lack of food.

You can live, depending on your current body fat and health level, for months without food.

Estimates are you that you will d** from lack of sleep within 2 weeks”

13. Pretty incredible.

“Your eyes have a separate immune system from the rest of your body and on a lot of occasions if your body’s immune system finds your eyes, they will assume they are a foreign body and blind you.”

Do you know any interesting facts about the human body?

Please share them with us in the comments!

We’d love to hear from you!