认知衰弱：一个新的概念

Cognitive frailty：a new concept

衰弱是由各种因素引起的与年龄相关的储备和功能的下降，与跌倒、残疾和死亡率等不良结局相关。诸多研究发现衰弱和认知功能障碍在老年人中的共存现象非常普遍，认知衰弱这一概念的提出加强了认知功能障碍与生理衰弱的临床关联。生理衰弱和认知障碍的相互作用导致身体和认知功能下降、生活质量变差。因此，对认知衰弱的筛查、早期识别与干预可以减少不良健康结局，改善患者的生活质量，从而实现健康老龄化。

Frailty is characterized as a decline in age-related reserve and function clue to various factors and is associated with adverse outcomes such as falls, disability and mortality. Many studies have found that the coexistence of physical frailty and cognitive impairment in the elderly is very common. The concept of cognitive frailty underscores the clinical association between cognitive function and physiological decline in the elderly. Interactions between physical frailty and cognitive impairment lead to decreased physical and cognitive function, resulting in poor quality of life. Therefore, early screening and intervention of cognitive frailty may help reduce the incidence of adverse health outcomes,improve the quality of life, and promote healthy aging.