A report from Dr Aric Sigman in science journal Biologist lists 15 health problems that can be attributed to excessive TV viewing in childhood including childhood obesity, eyesight problems, diabetes and hormonal changes. It is apparently based on Sigman's analysis of 35 separate scientific studies, in response to which he writes: "Given the evidence, it would be prudent to cordon off the early years of child development as a time when screen media is excluded and then introduced judiciously as the child matures."Here are his key claims:
- The average six-year-old in Britain has spent one full year watching TV, and more than half of three-year-olds have a set in their bedrooms
- The risk of developing Alzheimer's increases with each extra daily hour of television viewing among people aged 20 to 60
- Watching TV is linked with obesity, lower immunity, premature puberty, poor concentration, reading difficulties, raised cholesterol and type 2 diabetes
Now, not much of this is new. We've seen it all before in various studies. And while some might think that Sigman is pushing things a bit far in claiming that TV is as bad as all that, there is a mounting body of evidence that suggests that it can in fact contribute to all of the problems he mentions.
The TV industry is, naturally, up in arms about such research, and makes every effort to rubbish it. The timing could not be worse: just as funding for children's programming in the UK is being slashed, and junk-food advertising bans are being imposed during children's programmes, we're now being told that maybe our kids shouldn't be watching so much TV anyway, because it might actually be causing them to reach puberty much earlier, as well as increase their chances of developing cancer or dementia in later life.
If the industry took a more responsible position, we could perhaps allow it a place in the debate about how to proceed from here. I don't doubt that TV can be useful for educating children in some very particular circumstances. But while the official line of those that make it is to argue that advertising junk food to children does not contribute to childhood obesity, I have no respect for them at all. If the adverts didn't influence children's eating habits, why would advertisers spend so much money on trying to do just that? They are not motivated by a desire to see children's programming budgets increasing , and why should they be? Their business is selling habitually addictive fats and sugars to children. So when it comes to research that suggests actual physical hard caused by television on young bodies, the TV industry would do well to react more responsibly by engaging with the new revelations, rather than attacking them as invalid.
I wonder if one day we will look at TV the same way we look at smoking today. My generation grew up laughing at the idea that not long before we were alive, people apparently had no idea that inhaling the smoke of burning tobacco might actually be bad for the body. How absurd might it have seemed back then to suggest that cancer was a risk for smokers? But now we find it totally unsurprising that this is the case: of course it's harmful to smoke. Maybe one day claims like these about TV won't seem so alarmist, and we'll look back at today's news with much less surprise than Five's director of children's programmes, Nick Wilson, who rubbished the news as no more than "a good headline ... [to be] forgotten in two months' time".

