Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
In one day, adult lungs move about 10,000 litres of air.
11
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
In Ancient Greece, small penises were desirable, and big ones were for ‘old men and barbarians’
22
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Our eyes are always the same size from birth, but our nose and ears never stop growing.
269