If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
The human body contains over a billion miles of DNA.
147
Your heart will pump about 212 million liters in its lifetime.
26
Yawns are more contagious among people with closer relationships.
163