Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
The human brain doesn't stop developing until about 25 years old.
102
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
If your DNA was stretched out it would reach to the moon 6,000 times.
256
There are times when you're walking that the pressure on your feet exceeds your body weight, and when you're running, it can be three or four times your weight.
62
Your thumb is about the same size as your nose.
124
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22