Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
Yawns are more contagious among people with closer relationships.
163
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
Human hair and fingernails continue to grow after death.
7
Mushrooms are more closely related to humans than they are to plants.
47
One human hair can support 3 ounces.
191
Enamel is hardest substance in the human body.
61