目前，广州地区65岁以上人群痴呆患病率高达4.81%，抑郁症患病率达4.4%。广州市脑科医院主任赵振环介绍道，以广州市常住人口900万计，约4万人患有老年精神障碍。“老年人在任何年龄段患抑郁症的概率都是一样的，而痴呆症的发病率则与年龄相关，更与用脑多少有关。”广州市脑科医院副院长唐牟尼介绍道：70岁以后的老年人，每增长5岁，患病率就会增加一倍。85岁的老年人中，四分之一都会有老年痴呆症，而95岁的老年人，有一半有老年痴呆症。而脑力工作的老年人，更加容易患上老年痴呆症！(刘玮宁 夏杨 沈璞)

At present,Guangzhou area more than 65 - year - old crowd dementia rates as high as 4.81%,Depression rates up to 4.4%.Guangzhou brain hospital director ZhaoZhenHuan said,Guangzhou a permanent population of 9 million meter,About 40000 people with advanced mental disorder."Old people in any age depression probability are the same,And the incidence of dementia is related with age,How much more and the brain."Guangzhou brain hospital, vice President of the MouNi tang said:After age 70 years old people,Every 5 years old growth,Rates will be doubled.The 85 - year - old elderly people,There will be a quarter of alzheimer's disease,But the 95 - year - old old people,Half have alzheimer's disease.And mental work of old people,More easily suffer from alzheimer's disease!(LiuWei better XiaYang ShenPu)