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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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Your heart beats over 36 million times a year.
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Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.
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The horizontal fraction bar was introduced by the Arabs.
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The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.