导致老年人认知功能下降的疾病有很多,比如老年性痴呆、脑血管疾病、炎症、肿瘤等。这些疾病都可导致脑功能受损而出现认知功能下降,所以人越到老年,越要注意保护大脑,防止此类疾病的发生。其中,老年性痴呆是最易导致认知功能障碍的疾病,并且由于该病进展缓慢,很难被患者或家人发现。 Lack of cognitive function in the elderly there are many diseases, such as Alzheimer’s disease, cerebrovascular disease, inflammation, cancer and so on. These diseases can lead to impaired brain function and cognitive decline, so the more the elderly, the more attention should be paid to protect the brain and prevent the occurrence of such diseases. Among them, Alzheimer’s disease is the most easily lead to cognitive dysfunction disease, and due to the slow progress of the disease, it is difficult to be found by patients or their families.