An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
You can't tickle yourself.
29
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.
35
The average sperm cell swims at 8 inches per hour.
4
It has been scientifically proven that stroking a cat can lower one's blood pressure!
456
On average a woman has 4 sexual partners in her lifetime.
-143
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
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