Evidence Supports Link between Late-Life Cognitive Activity, Reduced Dementia Risk

​Available evidence seems to support the idea that late-life cognitive activity can limit the risk of Alzheimer disease and all-cause dementia, but details about the best types of activities remain unknown, according to a systematic review published in the September 2016 Epidemiology. The review included 12 studies covering nearly 14,000 participants, of whom 1,663 had dementia.