An Hour of TV a Day Equals a 10 Percent Increase in Attention Problems for Children

Another example comes from a study that looked at bullying. For each hour of TV watched daily by children under age 4, the risk increased 9 percent that they would engage in bullying behavior by the time they started school. This is poor emotional regulation at work. Even taking into account chicken-or-egg uncertainties, the American Association of Pediatrics estimates that 10 percent to 20 percent of real-life violence can be attributed to exposure to media violence.
TV also poisons attentions spans and the ability to focus, a classic hallmark of executive function. For each additional hour of TV watched by a child under the age of 3, the likelihood of an attentional problem by age 7 increased by about 10 percent. So, a preschooler who watches three hours of TV per day is 30 percent more likely to have attentional problems than a child who watches no TV.
Just having the TV on while no one is watching—secondhand exposure—seemed to do damage, too, possibly because of distraction. In test laboratories, flashing images and a booming sound track continually diverted children from any activity in which they were otherwise engaged, including that marvelous brain-boosting imaginative play we discussed. The effects were so toxic for kids in diapers that the American Association of Pediatrics issued a recommendation that still stands today:

Pediatricians should urge parents to avoid television viewing for children under the age of 2 years. Although certain television programs may be promoted to this age group, research on early brain development shows that babies and toddlers have a critical need for direct interactions with parents and other significant caregivers (e.g., child care providers) for healthy brain growth and the development of appropriate social, emotional, and cognitive skills.


Even second-hand television, just having it on the the room, causes problems; therefore, the APA recommends no Television for children for two years.

Folksonomies: parenting child rearing child development television

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 Brain Rules for Baby: How to Raise a Smart and Happy Child from Zero to Five
Books, Brochures, and Chapters>Book:  Medina , John (2010-10-12), Brain Rules for Baby: How to Raise a Smart and Happy Child from Zero to Five, Pear Press, Retrieved on 2011-07-27
Folksonomies: parenting pregnancy babies child development