Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
22
Your thumb is about the same size as your nose.
124
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
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