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
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Our brains have a negativity bias and will remember bad memories more than good ones.
15
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
All 13 minerals necessary for human life can be found in alcohol beverages.
282
The largest cell in the human body is the female egg and the smallest is the male sperm.
682