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Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

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Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

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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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Critical care patients are twice as likely to receive the wrong medication. Of these errors, 20% are life-threatening, and 42% require additional life-sustaining treatments.

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There are approximately 3 million unintended pregnancies in the United States each year.

Relatively simple changes in Hox genes control limb formation in tetrapods. Relatively simple changes in Hox genes control limb formation in tetrapods.
Negative feedback as a mechanism by which homeostatic control systems operate. Negative feedback as a mechanism by which homeostatic control systems operate.
Centers for disease control and prevention guidelines Centers for disease control and prevention guidelines
This exhaust manifold has a heat shield to help retain the heat and help reduce exhaust emissions. This exhaust manifold has a heat shield to help retain the heat and help reduce exhaust emissions.
Hormonal control over male and female reproductive hormones Hormonal control over male and female reproductive hormones
Control of flower formation, as revealed by mutations in Arabidopsis thaliana. Control of flower formation, as revealed by mutations in Arabidopsis thaliana.
Video: Pressure Flow Model Animation

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