The human sigh acts as a physiological reset button.
23
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
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
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
The human brain is very soft, having a consistency similar to soft gelatin or firm tofu.
13
There are about 1,400 different species of bacteria in your belly button.
10
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130