Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
A person can live without food for about a month, but only about a week without water.
156
Each nostril of a human being register smell in a different way. Smells that are made from the right nostril are more pleasant than the left.
38
Laughing could dramatically improve your health – and be as good for you as a deep state of meditation, researchers have found.
28
Your body is creating and killing about 2.4 million red blood cells per second.
17
Every year your body replaces 98% of your atoms.
119
When you look up at the blue sky and see white dots flying around, you’re actually seeing your own white blood cells.
30
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22