Chewing gum boosts your brain power.
285
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
Enamel is hardest substance in the human body.
61
The human brain doesn't stop developing until about 25 years old.
102
Your body is creating and killing about 2.4 million red blood cells per second.
17
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Your thumb is about the same size as your nose.
124
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197