Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
Human hair and fingernails continue to grow after death.
7
The average sperm cell swims at 8 inches per hour.
4
It takes about 20 seconds for a red blood cell to circle the whole body.
102
You can't tickle yourself.
29
On average, there's 100 billion neurons in the human brain.
83
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346