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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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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

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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.

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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

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Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

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