If your DNA was stretched out it would reach to the moon 6,000 times.
256
One human hair can support 3 ounces.
191
The average person's skin weighs twice as much as their brain.
131
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Chewing gum boosts your brain power.
285
Your body is creating and killing about 2.4 million red blood cells per second.
17
Yawns are more contagious among people with closer relationships.
163
The average sperm cell swims at 8 inches per hour.
76