Chewing gum boosts your brain power.
285
The human brain uses approximately as much energy as a 10 watt light bulb.
120
If your DNA was stretched out it would reach to the moon 6,000 times.
256
One human hair can support 3 ounces.
191
Your body is creating and killing about 2.4 million red blood cells per second.
17
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
The largest cell in the human body is the female egg and the smallest is the male sperm.
682