One human hair can support 3 ounces.
191
If the human eye was a digital camera, it would have 576 megapixels.
25
Your thumb is about the same size as your nose.
124
The average sperm cell swims at 8 inches per hour.
4
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
Human hair and fingernails continue to grow after death.
7
Babies crawl an average of 200m a day.
212