Yawns are more contagious among people with closer relationships.
163
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
It is possible for you to survive even after the removal of the spleen, the stomach, one kidney, one lung, 75% of the liver, 80% of the intestines, and almost every organ from the pelvic and groin area.
218
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
The average person will go on a date at least 100 times before they finally marry.
33
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
If the human eye was a digital camera, it would have 576 megapixels.
25