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
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
If you are cold you are more likely to be hungry because you use energy to keep warm.
143
The average sperm cell swims at 8 inches per hour.
76
Poor eyesight (myopia) is associated with higher IQ.
232