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Did you know?
If you could remove all of your skin, it would weigh up to 5 pounds.
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The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.
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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.