Blog > A study has found a correlation between TV and cognitive functioning
People Who Watch Lots of TV Have Lower Intelligence
The study, whose results were published in the JAMA Psychiatry Journal, involved 3,247 adult participants aged between 18 and 30, who were categorised by the amount of TV they watch and then tested for their processing speed and verbal functioning.
Results revealed that those in the category that watched the most television were twice as likely to have weaker mental functioning. Furthermore, high levels of television viewing in early adulthood, combined with low levels of physical activity, were linked to poorer executive and processing speeds into middle age.
The report, which was the first to give evidence of the effects of TV on cognitive aging, said, "We found that low levels of physical activity and high levels of television viewing during young to mid-adulthood were associated with worse cognitive performance in midlife.
In particular, these behaviours were associated with slower processing speed and worse executive function but not with verbal memory."
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