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The average office desk has 400 times more bacteria on it than a toilet.
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Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.