If the human eye was a digital camera, it would have 576 megapixels.
25
Obsessive nose picking is called Rhinotillexomania.
101
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Your fingernails grow faster in summer.
744
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
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197