It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Your thumb is about the same size as your nose.
124
There's 100 trillion good bacteria living in your body.
17
An Indian man known as "Snake Manu" can put small snakes, including deadly cobras, into his mouth and pass them out through his nose.
59
There are about 1,400 different species of bacteria in your belly button.
10
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55