Speed-Based Brain Training May Lower Dementia Risk by 25%

A Johns Hopkins–led follow-up to the ACTIVE trial finds that a speed-based brain-training game called Double Decision, available on BrainHQ, reduced dementia risk by about 25% over 20 years for older adults who completed months of training with booster sessions. The benefit is thought to arise from implicit learning and neuroplastic changes, with lasting effects; only the speed game showed advantages among memory and problem-solving games. The program is accessible today and can complement regular exercise and a Mediterranean-style diet for dementia prevention.