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If you could remove all of your skin, it would weigh up to 5 pounds.
The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.
Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.