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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
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There are more sensory neurons in the tongue than in any other part of the body.
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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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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.