Your wounds heal faster if you lick them, you instinctively do this for that reason. Tears help, too.
20
A fetus develops fingerprints at eighteen weeks!
32
On average, there's 100 billion neurons in the human brain.
83
It takes approximately 12 hours for food to entirely digest.
93
The heart pumps about 1 million barrels of blood during an average lifetime!
30
If you stop working out, it takes twice as long to lose strength than it took to gain it.
16
Only 1% of bacteria cause disease.
45
Your stomach produces a new layer of mucus every two weeks so that it doesn't digest itself.
160