May 31, 2017 May 31, 2017 Brandi Henry-Exarhos West Sound Academy takes a field trip to Bainbridge Island CrossFit Exercise is medicine for the brain Given time, any brain can succumb to dementia — memories fade, thoughts scatter, basic abilities wither on the vine. Brains don’t come with lifetime guarantees, but there is one major step you can take to protect yourself from Alzheimer’s or other causes of mental decline: exercise your body.Nothing protects the brain quite like regular exercise, says Jennifer Heisz, a cognitive neuroscientist at McMaster University in Ontario, Canada. Not crossword puzzles, not supplements, not prescription medications. Exercise seems to beat them all, reducing the risk of Alzheimer’s disease or cognitive decline by about 35% to 45%, according to the latest evidence. — LA Times Read more about why exercise is the best medicine for your brain.