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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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Green tea is able to stop the scent of garlic or onion from causing bad breath.

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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

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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.

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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

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Video: Cellular defenses (natural killer cells, phagocyte types & process of phagocytosis)

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