Cigarette smoke contains 4,800 chemicals, 69 of which cause cancer.
145
The average human body contains enough iron to make a small nail.
50
Your heart beats over 100,000 times a day!
54
The human brain is insensitive to pain.
76
A hard working adult sweats up to 4 gallons per day. Most of the sweat evaporates before a person realizes it's there, though!
25
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
12
Medical research has found substances in mistletoe that can slow down tumor growth.
32
Your body is creating and killing 15 million red blood cells per second!
14