The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
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One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.
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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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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%