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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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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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Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.