Longevity & AgingCognitive Decline Is Not Inevitable — Science Shows the Brain Can Rewire Itself
Brain health experts Dr Henry Mahncke and Dr Majid Fotuhi argue that cognitive decline is far more preventable and reversible than previously thought. The landmark ACTIVE trial found that adaptive speed training — visual tasks requiring rapid object identification under increasing time pressure — was associated with a 25% reduction in dementia incidence over 20 years. Fotuhi's clinical work shows that apparent Alzheimer's cases can sometimes be reversed through combined interventions targeting sleep, movement, diet, medication, and cognitive exercise. Together, these findings challenge the old view of the aging brain as a machine that only wears down, pointing instead to a brain that remains biologically plastic and trainable well into old age.