It takes 7 seconds for food to go from your mouth to your stomach.
A human hair can hold 3 kilograms.
The length of a man's erect penis is three times the length of his thumb.
The human femur is as hard as concrete.
A woman's heart beats faster than a man's.
Women blink twice as many times as men.
We use 300 muscles to maintain our balance when we stand.
If you're a woman you've finished reading this.
If you're a man you're still looking at your thumb.