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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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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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Medication errors are three times higher among children and infants than with adults.

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If you could remove all of your skin, it would weigh up to 5 pounds.

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Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

The Environment Influences Gene Expression The Environment Influences Gene Expression
Structures formed by phospholipids in an aqueous environment. Structures formed by phospholipids in an aqueous environment.
The rock cycle and the Earth’s physical environment The rock cycle and the Earth’s physical environment
An infant begins to notice the external environment by the age of 4 to 8 months An infant begins to notice the external environment by the age of 4 to 8 months
Prepare for weekend plans when hours feel like minutes Prepare for weekend plans when hours feel like minutes
Jamal plans to retire in 17 years. He is saving $2000 every start of the month in a retirement ... Jamal plans to retire in 17 years. He is saving $2000 every start of the month in a retirement ...
Video: Electrical changes in the heart

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