Physical exercise benefits our brain. So do mental exercises. The latest evidence of that comes from Canada’s McGill University where researchers suggest game-like online exercises counter effects of aging and dementia in key brain systems. Using the app BrainHQ for ten weeks by older adults enhanced cholinergic function, a chemical system in the brain that typically declines with age. The brain game restored cholinergic health to levels usually seen in someone ten years younger. The study offers a biochemical explanation of prior studies showing these brain exercises reduce dementia risk and boost cognition. BrainHQ is commercially available for people interested in supporting brain health.