一项新的研究显示，年轻时经常参加能锻炼大脑的活动，比如像读书、下棋以及玩拼图游戏等，到老年时患老年痴呆症的危险就会减少２．５倍，而经常看电视则会增加患老年痴呆症的危险。研究人员在对一群７０岁老年人所进行的研究中发现，年轻时经常参加富有挑战性的智力活动，可? A new study shows that when you are young, you often engage in brain-building activities such as reading books, playing chess and playing puzzles. You risk reducing the risk of dementia by a factor of 2.5 in old age, and often watching TV It will increase the risk of Alzheimer’s disease. In a study of a group of 70-year-olds, researchers found that when they were young, they often took part in challenging intellectual activities.