Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
Every year your body replaces 98% of your atoms.
119
Poor eyesight (myopia) is associated with higher IQ.
232
If your DNA was stretched out it would reach to the moon 6,000 times.
256
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
59
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
Our Right Lungs takes more air than our left lung.
194