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In 1844, Charles Goodyear obtained the first patent for a rubber condom.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.
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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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Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.