For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Enamel is hardest substance in the human body.
61
In one day, adult lungs move about 10,000 litres of air.
11
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92