A recent study has revealed that engaging in a specific free online brain game may reduce the risk of dementia by an impressive 25%. Conducted over two decades, this research highlights the potential of cognitive training through gaming to enhance brain health, particularly for older adults. The findings suggest that regular participation in speed-training games could be a simple yet effective strategy for maintaining cognitive function as we age. The study involved nearly 3,000 participants aged 65 and older, who were divided into groups to assess the impact of various cognitive training methods.