After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
In 1996, research found that having excessive body hair is linked to higher intelligence.
23
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
In one day, adult lungs move about 10,000 litres of air.
11
One human hair can support 3 ounces.
191
Your thumb is about the same size as your nose.
124
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
12