TV time isn't benign

Parking the kids in front of the TV might seem like an easy way to grab a couple of minutes to relax after work or make dinner, but too much TV time is definitely not a good thing.

Recent research suggests that along with significantly increasing the risk of childhood obesity, the likelihood of behavioral problems also goes up when kids watch more than two hours a day of TV.

"Sustained TV watching has a negative effect on behavior and social skills," says Carla Weidman, a psychologist in the child development unit at Children's Hospital of Pittsburgh.

When children are watching TV, she explains, they're not engaging in other important activities, such as imaginative play. They're also not interacting with others to learn social skills and appropriate ways to resolve conflicts.

"When TV is used as a babysitter or passive entertainment, that's when it's a problem," says Dr. Christopher Lucas, director of the early childhood service at the New York University Child Study Center in New York City. "But, the reality is that parents can't interact with their children all the time, and they have a need for a temporary babysitter."

Some parents might take comfort in the idea that television offerings include educational programming.

"There's a belief that if children are put in front of some educational medium, that it's somehow a good thing," Lucas says. "But, there's evidence that the positive effect of educational programming in the absence of parental interaction is modest."

The average child today spends 45 hours a week with some form of media, compared with just 30 hours in school, according to a recent report from Common Sense Media. The report, prepared by researchers from Yale, the U.S. National Institutes of Health and California Pacific Medical Center, analyzed data from 173 studies done on children and media and found that media exposure can contribute to childhood obesity, tobacco use, drug use, alcohol use, poor school achievement, sexual behavior and attention problems.

Problems from media exposure can start at a young age. Johns Hopkins researchers found that by the time a child is 5 and a half, those who've regularly watched more than two hours of TV daily are much more likely to exhibit behavior problems. In fact, aggressive behavior was more than doubled in youngsters who regularly watched more than two hours of television daily.

And, the Hopkins study, which was published in the journal Pediatrics, found that 20 percent of kids from the 2,702 families studied watched more than two hours of TV a day. More than 40 percent of the youngsters had their own TVs in their bedrooms.