When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
The human sigh acts as a physiological reset button.
23
In one day, adult lungs move about 10,000 litres of air.
11
Obsessive nose picking is called Rhinotillexomania.
101
On average, there's 100 billion neurons in the human brain.
83
On average a woman has 4 sexual partners in her lifetime.
-143
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515