The average office desk has 400 times more bacteria than a toilet.
22
Fingernails grow fastest on the hand you favor.
44
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
The brain can stay alive for 4 to 6 minutes without oxygen. After that cells begin die.
193
Your body is creating and killing about 2.4 million red blood cells per second.
17
The heart pumps about 1 million barrels of blood during an average lifetime!
30
On average, there's 100 billion neurons in the human brain.
83
If you unfolded your brain, it would cover an ironing board.
42