Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
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
Poor eyesight (myopia) is associated with higher IQ.
232
Mushrooms are more closely related to humans than they are to plants.
47
You can't tickle yourself.
29
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
Our brains have a negativity bias and will remember bad memories more than good ones.
15