According to a 1950s survey, 75% of men ejaculate within two minutes of penetration.
109
Your heart beats over 100,000 times a day!
54
There are about 1,400 different species of bacteria in your belly button.
10
Dieters who sleep more take off more fat that those who sleep less.
159
Your stomach produces a new layer of mucus every two weeks so that it doesn't digest itself.
160
On average, there's 100 billion neurons in the human brain.
83
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18

