Study links dementia risk, TV habits

Washington

IT turns out that too much TV might damage your brain and also raise the risk of developing Alzheimer's disease - and that the effects could show up much sooner than previously believed, a new study suggests.

Researchers at the Northern California Institute for Research and Education in San Francisco who investigated the association between sedentary lifestyles, cognitive performance and the risk of developing dementia found that people who watched a lot of television - namely, four hours or more per day - scored significantly lower on measures of cognitive performance in middle age.