New studies show that a sedentary child will likely become a sedentary adult, and a sedentary life leads to a host of health problems, from obesity to heart disease.

Rising "screen time" can cost kids the exercise they need to keep fit.

Video games can take up too much of your kids' time. They may keep your kids from schoolwork and isolate them from family and friends. They can fuel obesity by limiting physical activity.

You can now add bullying to the list of things made easier by technology. Bullies use e-mail, instant messaging, and text messaging on cell phones to reach victims.

Detailed information on television and children, including suggestions for helping set good television viewing habits