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All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

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There are more sensory neurons in the tongue than in any other part of the body.

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In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

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Human kidneys will clean about 1 million gallons of blood in an average lifetime.

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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

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