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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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Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.
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There are approximately 3 million unintended pregnancies in the United States each 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.
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The average office desk has 400 times more bacteria on it than a toilet.