Heck yeah, people must exercise, I'm pretty sure that the connection between exercise and brain health is well established. Getting brain nutrients is essential as well, eat a handful of raw walnuts before retiring every night, cut down on red meat and dairy [wrong kinds of Omega3's] and get fish oil Omegas, supplement Phosphatidylserine or get it from sardines, but sardines are high in iron so you have to be exercising a LOT to burn off the iron, just find any brain nutrient you possibly can and get plenty of it, blueberries even, and you will be surprised how much better things can get... that and mild exercise and you will be good to go.. the normal person might take six months to realize the total effects but some change will be noticeable in only a few days..