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The human body produces and destroys 15 million blood cells every second.
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Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.
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There are more bacteria in your mouth than there are people in the world.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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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.