Online brain games can extend in-game 'cognitive youth' into old age. A new study has found that online brain game exercises can enable people in their 70s and even 80s to multitask cognitively as well as individuals 50 years their junior. This is an increasingly valuable skill, given today's daily information onslaught, which can divide attention and be particularly taxing for older adults. Source 4d.
Actually this is very true and known. Especially for people who have Alzheimers.
Unfortunately close friend of mine lost most of his family members due to Alzheimers and since this is hereditary doctor told him to start exercising his brain now before it is too late.