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Did you know?
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 horizontal fraction bar was introduced by the Arabs.
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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.
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If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.
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The familiar sounds of your heart are made by the heart's valves as they open and close.