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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Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.
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If you could remove all of your skin, it would weigh up to 5 pounds.
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Vaccines prevent between 2.5 and 4 million deaths every year.
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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
Change in Drawing Abilities from Early to Middle Childhood Drawings become more realistic as fine m