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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.