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 study in the UK states that men need at least two "guys nights out" each week to stay healthy.
5
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
There are more bacteria in your mouth than there are people in the world.
60
Each nostril of a human being register smell in a different way. Smells that are made from the right nostril are more pleasant than the left.
38
Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
15
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Midgets and dwarfs almost always have normal sized children.
54