EC NEUROLOGY Mini Review Sleep Disorders and Cognitive Decline

Sleep and sleep related disorders are involved in dementia pathogenesis. In particular, sleep quality, more than the sleep amount, plays a fundamental role in cognitive impairment. Mounting evidence implicates disturbed sleep or lack of sleep as one of the risk factors for Alzheimer’s disease (AD), but the extent of the risk is still uncertain. As sleep problems are of a growing concern in the population, these findings are of interest for potential prevention of AD. Sleep related breathing disorders and insomnia are the main causes of neurodegenerative disorders and vice-versa older age and neurodegenerative disorder may induce alterations of circadian rhythm. A lot of studies demonstrated that sleep disorders treatment improves cognitive performances.