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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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The average adult has about 21 square feet of skin.
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Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
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Women are 50% to 75% more likely than men to experience an adverse drug reaction.
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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.