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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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It is difficult to obtain enough calcium without consuming milk or other dairy foods.
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The horizontal fraction bar was introduced by the Arabs.
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The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.