Intelligent people have more zinc and copper in their hair.
233
Men laugh longer, louder, and more often than women.
61
A hard working adult sweats up to 4 gallons per day.
39
Approximately one-third of the population can't snap their fingers!
91
Only about 2% of the world population has green eyes.
36
Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
99