Watching TV ‘can cause anti-social behaviour’
There is also a correlation between the amount of television children watch and the degree of educational damage they suffer, according to the report by Dr Aric Sigman, who is an Associate Fellow of the British Psychological Society.
And significant long-term damage occurs even at so-called modest levels of viewing - between one and two hours a day, the report, entitled Remotely Controlled, says.
Children now spend more time watching a TV screen than they spend in school, but viewing even a moderate amount can dramatically increase their risk of myopia, slow down their metabolic rate and may trigger premature puberty, according to Dr Sigman.
It was also found to lead to a “significantly elevated risk” of sleep problems in adulthood, causing hormone changes, which in turn directly increase appetite and body fat production and damage the immune system leading to a greater vulnerability to cancer.
Children aged 11 to 15 years spend seven and a half hours a day watching TV and computers - an increase of 40% in decade.
More than half of three-year-olds have a TV set in their bedrooms and the average six-year-old will have already watched nearly one full year of their lives.
Dr Sigman said: “A ‘dose-response relationship’ between the amount of television children watch and the degree of educational damage they suffer is now emerging which has ‘biological plausibility’.
“Television viewing is also now linked with stunting brain development in the child’s frontal lobes leading to reduced impulse control and increased antisocial behaviour.
“Teachers are under pressure to vie for the child’s attentional resources which have been damaged by exposure to fast changing screen images.”
He suggests children under three should see no screen entertainment, those over three should be limited to watching one hour a day of “good quality” programmes, teenagers should be limited to one and a half hours and adults should watch two hours a day.
“There is simply too much at stake not to be responsibly decisive now.
“In short, there’s nothing to be lost by watching less television but a great deal to be lost by continuing to watch as much as we do,” he said.





