The human body contains over a billion miles of DNA.
147
Chewing gum boosts your brain power.
285
The human brain doesn't stop developing until about 25 years old.
102
Your thumb is about the same size as your nose.
124
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
The human brain uses approximately as much energy as a 10 watt light bulb.
120
Your body is creating and killing about 2.4 million red blood cells per second.
17