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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

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The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

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In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

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In Eastern Europe and Russia, interferon is administered intranasally in varied doses for the common cold and influenza. It is claimed that this treatment can lower the risk of infection by as much as 60–70%.

Nephroblastoma. A sectioned kidney reveals the presence of a very large tumor, which arose from feta Nephroblastoma. A sectioned kidney reveals the presence of a very large tumor, which arose from feta
An Extinct Vertebrate and a Modern Relative An Extinct Vertebrate and a Modern Relative
An electronic scale. An electronic scale.
Saving Rates by Income Quintile, 2003 Saving Rates by Income Quintile, 2003
The Distribution of Growth Rates, 1975–2009 The Distribution of Growth Rates, 1975–2009
Outgroup role in relative rate test Outgroup role in relative rate test
Video: Hormonal feedback loop components

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