If your DNA was stretched out it would reach to the moon 6,000 times.
256
A person can live without food for about a month, but only about a week without water.
156
You can't tickle yourself.
29
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
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
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
We share 70% of our DNA with a slug.
218
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31