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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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The longest a person has survived after a heart transplant is 24 years.
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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.