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Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

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Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

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About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.

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When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

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Approximately 500,000 babies are born each year in the United States to teenage mothers.

Functional Functional
nephron - functional unit of the kidney nephron - functional unit of the kidney
The “Flat Head” (Chinook) Indians acquired their name through shaping in infancy, as shown in a diag The “Flat Head” (Chinook) Indians acquired their name through shaping in infancy, as shown in a diag
Respiratory Rate Ranges of Various Age Groups Respiratory Rate Ranges of Various Age Groups
Schematic depiction of the action of tryptophan synthase in one functional unit Schematic depiction of the action of tryptophan synthase in one functional unit
Eating a variety of foods from all food groups is the best strategy to meet your daily mineral needs Eating a variety of foods from all food groups is the best strategy to meet your daily mineral needs
Video: Semidiscontinuous DNA replication

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