“Does one have to spend their life savings on computer games? I don’t think so,” said Dr. Yonas Geda, a psychiatrist at the Mayo Clinic in Scottsdale, Arizona, who’s looked at some alternatives. Research on the issue isn’t conclusive, but there are hints that getting more exercise and stimulating your mind with games, computer use and other activities can help keep the brain nimble. It’s also possible reducing high blood pressure will lower chances of dementia by improving blood flow to the brain and preventing a stroke or heart attack. At worst, those steps should improve your mood and overall health.