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Pregnant women usually experience a heightened sense of smell beginning late in the first trimester. Some experts call this the body's way of protecting a pregnant woman from foods that are unsafe for the fetus.
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Your heart beats over 36 million times a year.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.