One human hair can support 3 ounces.
191
Your body is creating and killing about 2.4 million red blood cells per second.
17
If your DNA was stretched out it would reach to the moon 6,000 times.
256
The average person's skin weighs twice as much as their brain.
131
Yawns are more contagious among people with closer relationships.
163
When you take a step, you are using up to 200 muscles.
886
Every year your body replaces 98% of your atoms.
119
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99