You can't tickle yourself.
29
Research has determined that most people are happiest at 7:26pm on a Saturday night.
69
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
93
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
The oldest stone tools found are dated from 2.7 - 2.9 million years ago. The species that made these tools is unknown.
13
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
Poor eyesight (myopia) is associated with higher IQ.
232