Infants under 1 year old should not be exposed to electronic screens, and children between the ages of 2 and 4 should not have more than one daily hour of “sedentary screen time,” the agency said Wednesday.

A recent mouse study uncovers a new hormonal player in the body's metabolic response to weight loss. It appears to have a similar role to leptin.

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Peanuts are a high-protein, nutrient-rich snack. Raw peanuts and peanut butter are especially good for a person's health. In this article, we look at the nutritional profile and benefits of peanuts.

Some 11 million deaths annually are linked to diet-related diseases like diabetes and heart disease, a study finds. Researchers say that makes diet the leading risk factor for deaths around the world.(Image credit: John D. Buffington/Getty Images)

An annual physical exam also found that a modest weight gain since last year has tipped the president into the obese category.(Image credit: Pool/Getty Images)