Chewing gum boosts your brain power.
285
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
If you are cold you are more likely to be hungry because you use energy to keep warm.
143
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
The human body contains over a billion miles of DNA.
147
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149