Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
198
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
You forget 90% of your dreams.
256
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Pain occurs when sounds are above 130 db.
124