A man's beard grows fastest when he anticipates sex.
239
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Every human spent about half an hour as a single cell.
144
The human brain is more active during sleep than during the day.
28
The world's shortest man measures only 21.5 inches.
73
All 13 minerals necessary for human life can be found in alcohol beverages.
282
Your heart will pump about 212 million liters in its lifetime.
26