If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
21
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
A person can live without food for about a month, but only about a week without water.
156
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
There's 100 trillion good bacteria living in your body.
17