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Your heart beats over 36 million times a year.
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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.
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Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.