New research shows that exercise keeps brains from atrophying. If you can still move, keep moving.
"How physical activity protects the brain still isn’t clear, but the researchers speculate that consistent exercise, particularly aerobic activities, promotes heart health, which in turn keeps nutrient-rich blood flowing to the brain to nourish neurons."


Exercise Trumps Brain Games in Keeping Our Minds Intact | TIME.com
healthland.time.com
It's inevitable that as we age, our brains get smaller. Nerves die off, losing their connections, and that leads to a thinned out network feeding our thinking functions. But brain shrinkage isn't inevitable, according to the latest study of elderly adults.