Children's Health

Dozens of games and apps claim to improve your memory or make you smarter or reduce stress. But do they really? Developers say the next step is clinically valid proof of cognitive gains.

Africa marks one year without polio on Tuesday. But there are now concerns in Kenya, where bishops have declared a boycott of the vaccine on the eve of a WHO polio vaccination campaign.

Dr. Leana Wen came to Baltimore as health commissioner to combat the city's longstanding problems with violence, drug addiction and health disparities. She finds that solutions don't come easy.

The way one fifth of Iowa's residents get health care is about to change. The governor is putting Medicaid in the hands of private insurance companies, and 11 firms are vying for that business.

Leana Wen, Baltimore's new health commissioner, is trying to apply public health approaches to ameliorate the city's deep-seated problems with poverty, violence and disease.

Most young children who are extra choosy about what they'll eat eventually outgrow the habit. But research finds that in extreme cases, the pickiness may be linked to depression or social anxiety.

Sometimes one person's insight transforms medicine. Dr. John Clements is one of those people. In the 1950s he discovered a slippery lung substance key to breathing, and to the survival of tiny babies.