记忆减退不一定老年痴呆

　　上海市精神卫生研究所与美国伊利诺斯大学公共卫生学院，合作调查了五千多名上海市区的老年人后发现，约66％的老年人可发生记忆力减退，但最后发展成痴呆的仅４％左右，绝大多数只是良性记忆力减退。

　　因此，出现记忆力减退的老年人别盲目担心。北京朝阳医院神经内科主任医师胡文立告诉记者，区分“真假”老年性痴呆症引起的记忆力减退，主要看除记忆减退外，智能是不是有障碍，如部分或完全忘记数字，甚至连简单的计算，像“4＋5”等于几也难以完成。特别是有时找不到回家的路，不认识身边的亲人等，诸如此类智力活动产生缺陷，影响到日常的生活，才需考虑可能是老年性痴呆症。

　　其实，记忆只是整个智力活动过程中的一个环节，老年人的脑组织衰老、神经功能减退是正常的生理现象，单纯的记忆力减退并不等于智力活动出现“问题”。同时，老年人一般有不同程度的脑动脉硬化、血管腔变窄的情况，也会造成与记忆有关的大脑组织血液和氧气供应不足，导致记忆力减退。（6）特回答贵公司某月某日函所叙述有关事项等入党申请书
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