The results of two new studies — the largest and longest of their kind — are in, and the results aren’t good. It appears that by the time you’ve gotten to your 70s, things like improving exercise, or adding dietary supplements are unlikely to help keep you mentally fit and ward off dementia. U.S. News & World Report interviewed the doctors associated with the two studies, and they agree: your best bet is to start early eating a good diet. Of course, this doesn’t mean you shouldn’t exercise, but the benefits will be physical and emotional, not mental.
