Your heart beats over 100,000 times a day!
54
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
Poor eyesight (myopia) is associated with higher IQ.
232
Pain occurs when sounds are above 130 db.
123
There are 206 bones in the human body!
-17
Men have larger hearts; women's hearts beat faster.
77
In one day, adult lungs move about 10,000 litres of air.
11
Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22