After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
Obsessive nose picking is called Rhinotillexomania.
101
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
One human hair can support 3 ounces.
191
In ancient Egypt, priests plucked EVERY hair from their bodies, including their eyebrows and eyelashes.
130
The average person's skin weighs twice as much as their brain.
131
A person can live without food for about a month, but only about a week without water.
156
Crying literally alleviates stress and uniquely allows humans to decrease feelings of anger and sadness.
24