21 fascinating facts about the human body

21 fascinating facts about the human body

The human body is a fascinating machine that many of us, no doubt, take for granted. Here are 21 interesting facts about it.

  1. Women’s hearts beat faster than men’s.
  2. Not only are humans the only species known to blush, but when we do go red, our stomach does too.
  3. The brain itself feels no pain because it doesn’t have pain receptors. The vessels, nerves, and tissues surrounding it do though, and their pain receptors are responsible for feeling that splitting headache.
  4. One human hair can support 3.5 ounces, which is the equivalent of two full-sized candy bars. Imagine how much weight a full head of hair can hold!
  5. Stomach acid is strong enough to dissolve razor blades.
  6. The human heart beats over three million times throughout the average lifespan.
  7. The cornea of the eye is the only part of the body that doesn’t receive blood supply – it takes in oxygen right from the air.
  8. Human teeth are as strong as shark teeth.
  9. Human eyes distinguish between 2.3 and 7.5 million colors.
  10. Your tongue print is as unique as your fingerprint.
  11. Your hand would lose 50% of its strength without its pinky finger.
  12. Babies have more bones than adults. As we grow, some of our bones fuse together. We’re born with 350 bones, but by adulthood, we have around 206 bones.
  13. Not only do blondes supposedly have more fun, but they actually have more hair, averaging 146,000 follicles per head. Redheads have the least number of hair follicles, totaling 86,000.
  14. Approximately three to five pounds of the human body weight are bacteria.
  15. Teeth are the only part of the body that cannot heal themselves.
  16. Blue eyed people are more sensitive to pain than those with different colored eyes.

  1. The brain has 100,000 chemical reactions every second
  2. The tongue has approximately 2,000 taste buds
  3. Kids grow faster in the spring.
  4. Bones are approximately five times stronger than steel.
  5. You’ll die faster from a lack of sleep than from hunger. It takes approximately 10 days to die from lack of sleep, but dying from hunger needs a few weeks.

Now you know

You may not be an MD, but you can still impress your friends with these insane facts about the human body.


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