In one day, adult lungs move about 10,000 litres of air.
11
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
A man's beard grows fastest when he anticipates sex.
239
Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
34
You can't tickle yourself.
29
Poor eyesight (myopia) is associated with higher IQ.
232
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14