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The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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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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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.
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People about to have surgery must tell their health care providers about all supplements they take.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.