Only 1% of bacteria cause disease.
45
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18
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
It takes about 20 seconds for a red blood cell to circle the whole body.
102
40% of all indigestion remedies sold in the world are bought by Americans.
8
Fidgeting can burn about 350 calories a day.
201
One quarter of the human brain is used to control the eyes.
43
Every year your body replaces 98% of your atoms.
119