During a typical human life span, the human heart will beat approximately 2.5 billion times.
21
An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
If your stomach didn't produce a new layer of mucous every two weeks, it would digest itself.
33
Midgets and dwarfs almost always have normal sized children.
54
The human brain is insensitive to pain.
76
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
12
The tongue is the strongest muscle in the human body.
50
When a person dies, hearing is usually the last sense to go.
124