Advances in the Study of Sleep-related Subjective Cognitive Decline

Subjective cognitive decline (SCD) usually predicts the risk of future cognitive decline, and sleep disturbances are very common in patients with SCD and often precede detectable cognitive changes. Although there is a lack of clarity regarding the relationship between sleep and SCD and the underlying mechanisms of sleep-related cognitive deterioration, studies in recent years have shown a strong link between sleep and cognitive decline. Cognitive decline may be triggered by either sleep deprivation or decreased sleep quality. Therefore, the aim of this review is to provide a comprehensive overview of the research progress on sleep and subjective cognitive decline, and to explore in depth the mechanism of their interaction, with a view to providing new ideas and methods for preventing and delaying cognitive decline, and providing useful references for research and practice in related fields.