For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
All 13 minerals necessary for human life can be found in alcohol beverages.
282
Enamel is hardest substance in the human body.
61
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
The human brain has the capacity to store everything that you experience.
4k
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
Your heart will pump about 212 million liters in its lifetime.
26