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
Shark corneas are used in eye transplants and shark bone marrow can be used to graft human bones.
132
In one day, adult lungs move about 10,000 litres of air.
11
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Poor eyesight (myopia) is associated with higher IQ.
232
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
A human being loses an average of 40 to 100 strands of hair a day.
133