An analysis of Medicare data from the 20-year ACTIVE trial showed that a subgroup of older adults who received one of the three interventions had a reduced risk of dementia. ACTIVE study participants were randomized into different groups. The ACTIVE (Advanced Cognitive Training for Independent and Vital Elderly) study demonstrated the long-term cognitive benefits of brain speed training. The training improved cognitive functions and delayed the deterioration of cognitive abilities in seniors. The results suggest that cognitive training may have a positive effect on dementia prevention over a long follow-up period.[1][7]