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Vaccines prevent between 2.5 and 4 million deaths every year.
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Green tea is able to stop the scent of garlic or onion from causing bad breath.
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More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.