Your wounds heal faster if you lick them, you instinctively do this for that reason. Tears help, too.
20
Your heart will pump about 212 million liters in its lifetime.
26
Within three days of death, the enzymes that once digested your food begin to eat you.
22
The whiter your tongue, the more germs there are on it.
88
Every year your body replaces 98% of your atoms.
119
Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22
Enamel is hardest substance in the human body.
61
Music has the ability to repair brain damage and return lost memories.
62