It takes about 20 seconds for a red blood cell to circle the whole body.
102
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
If your DNA was stretched out it would reach to the moon 6,000 times.
256
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
When you take a step, you are using up to 200 muscles.
886
All the chemicals in a human body combined are worth about 6.25 euro (if sold separately).
266
The average person's skin weighs twice as much as their brain.
131