The heart pumps about 1 million barrels of blood during an average lifetime!
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A human brain produces as many as 12,000 to 50,000 thoughts per day, depending on how deep a thinker a person is.
23
According to one report, it would take 800 marijuana joints to kill a person - but the cause of death would be carbon monoxide poisoning.
176
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
The right lung takes in more air than the left.
30
You can alleviate a tickly throat by scratching your ear.
9
All humans have the ability to see ultraviolet light, but it is passively filtered out by the eye's lens. People who undergo surgery to remove the lens can detect ultraviolet light.
21