read more here: http://arstechnica.com/science/2015/12/ ... -function/TV binging, exercise skipping linked to poor cognitive function
"In a 25-year study that tracked more than 3,000 young adults into midlife, researchers found that those with the highest television watching and lowest physical activity scored worse on certain cognitive tests than their fit, less TV-addicted counterparts. In particular, couch potatoes had slightly lower brain processing speeds and worse executive function, but they scored just as well as other participants on verbal memory tests. The findings, reported in JAMA Psychiatry, may suggest that such bad TV and exercise habits early in life could set people up for faster cognitive decline in later life, the authors said."
The study can be found here:
Effect of Early Adult Patterns of Physical Activity and Television Viewing on Midlife Cognitive Function
http://archpsyc.jamanetwork.com/article ... .2015.2468