Family is the most important influence in a child's life, but television is not far behind. Television can inform, entertain and teach us. However, some of what TV teaches may not be what you want your child to learn. TV programs and commercials often show violence, alcohol or drug use and sexual content that are not suitable for children or teenagers. Studies show that TV viewing may lead to more aggressive behavior, less physical activity, altered body image, and increased use of drugs and alcohol. By knowing how television affects your children and by setting limits, you can help make your child's TV-watching experience less harmful, but still enjoyable.

You may not realize it, but there are many ways that television affects your child's life. When your child sits down to watch TV, consider the following:

Time

Children in the United States watch about four hours of TV every day. Watching movies on tape or DVD and playing video games only adds to time spent in front of the TV screen. It may be tempting to use television, movies and video games to keep your child busy, but your child needs to spend as much time exploring and learning as possible. Playing, reading and spending time with friends and family are much healthier than sitting in front of a TV screen.

Nutrition

Studies show that children who watch too much television are more likely to be overweight. They do not spend as much time running, jumping and getting the exercise they need. They often snack while watching TV. They also see many commercials for unhealthy foods, such as candy, snacks, sugary cereals and drinks. Commercials almost never give information about the foods children should eat to keep healthy. As a result, children may persuade their parents to buy unhealthy foods.

Learning

Television affects how your child learns. High-quality, nonviolent children's shows can have a positive effect on learning. Studies show that preschool children who watch educational TV programs do better on reading and math tests than children who do not watch those programs. When used carefully, television can be a positive tool to help your child learn.

For older children, high-quality TV programs can have benefits. However, for younger children it's a very different story. The first two years of life are especially important in the growth and development of your child's brain. During this time, children need good, positive interaction with other children and adults to develop good language and social skills. Learning to talk and play with others is far more important than watching television.

Until more research is done about the effects of TV on very young children, the American Academy of Pediatrics (AAP) does not recommend television for children younger than two years of age. For older children, the AAP recommends no more than one to two hours per day of quality screen time.