The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
A person can live without food for about a month, but only about a week without water.
156
Enamel is hardest substance in the human body.
61
On average a woman has 4 sexual partners in her lifetime.
-143
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Mushrooms are more closely related to humans than they are to plants.
47
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31