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Did you know?
There are more bacteria in your mouth than there are people in the world.
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The average adult has about 21 square feet of skin.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.
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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.