ow much TV you watch as a young adult may affect midlife cognitive function

http://www.eurekalert.org/pub_releases/2015-12/tjnj-hmt113015.php

Public Release: 2-Dec-2015
How much TV you watch as a young adult may affect midlife cognitive function
The JAMA Network Journals

Watching a lot of TV and having a low physical activity level as a young adult were associated with worse cognitive function 25 years later in midlife, according to an article published online by JAMA [Journal of the American Medical Association] Psychiatry.

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"In this biracial cohort followed for 25 years, 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 behaviors were associated with slower processing speed and worse executive function but not with verbal memory. Participants with the least active patterns of behavior (i.e., both low physical activity and high television viewing time) were the most likely to have poor cognitive function. ... Individuals with both low physical activity and high sedentary behavior may represent a critical target group," the study concludes.