If Earth's life was compressed into 1 year, then humans would have been around for only 2 seconds.
15
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
Gorillas can catch human colds and other illnesses.
205
Your fingernails grow faster in summer.
744
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
Human hair and fingernails continue to grow after death.
7
A third of the human population sneezes when they look at the Sun. Light can signal the ocular nerve near the sinuses and triggers a sneeze.
18