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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Medication errors are more common among seriously ill patients than with those with minor conditions.
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There are more sensory neurons in the tongue than in any other part of the body.
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The familiar sounds of your heart are made by the heart's valves as they open and close.
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The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.