The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
On average a woman has 4 sexual partners in her lifetime.
-143
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
The human brain is more active during sleep than during the day.
28
A man's beard grows fastest when he anticipates sex.
239