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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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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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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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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.
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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.