During a typical human life span, the human heart will beat approximately 2.5 billion times.
21
The human brain doesn't stop developing until about 25 years old.
102
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
If you are cold you are more likely to be hungry because you use energy to keep warm.
144
Taphephobia is the fear of being buried alive!
44
About 400 different kinds of microbes live on and in the human body.
-3
On average, women have always lived longer than men.
195
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22