Few studies have investigated the association between physical activity in early adulthood and cognitive function later in life. 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. The study of 3,247 adults (ages 18 to 30) used a questionnaire to assess television viewing and physical activity during repeated visits over 25 years. High television viewing was defined as watching TV for more than 3 hours per day for more than 2/3 of the visits and exercise was measured as units based on time and intensity. Cognitive function was evaluated at year 25 using three tests that assessed processing speed, executive function and verbal memory.
Participants with high television viewing during 25 ...
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