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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

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Asthma cases in Americans are about 75% higher today than they were in 1980.

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In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

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More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

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Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

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