For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Our Right Lungs takes more air than our left lung.
194
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
Pain occurs when sounds are above 130 db.
124
The human brain is more active during sleep than during the day.
28
A man's beard grows fastest when he anticipates sex.
239