When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Due to the angle at which the optic nerve enters the brain, staring at a blue surface during sex greatly increases the intensity of orgasms.
252
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
It takes about 20 seconds for a red blood cell to circle the whole body.
102
The human brain uses approximately as much energy as a 10 watt light bulb.
120
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22