By weight, Bone is five times stronger than steel.
417
During menstruation, the sensitivity of a woman's middle finger is reduced.
47
A new parent will lose about 1055.6 hours of sleep in the first year of their child's life - almost 44 days!
6
About 400 different kinds of microbes live on and in the human body.
-3
Cigarette smoke contains 4,800 chemicals, 69 of which cause cancer.
145
Your body is creating and killing 15 million red blood cells per second!
14
Fingernails grow nearly 4 times faster than toenails!
30
