Sleep problems and Dementia

After conducting an updated systematic review and meta-analysis of the association between sleep and all-cause cognitive impairment, the authors of the article Journal of Neurology, Neurosurgery & Psychiatry 2020;91:236-244 came to the following conclusions

Ten types of sleep conditions or parameters, including six (insomnia, fragmentation, daytime dysfunction, prolonged latency, rapid eye movement sleep behaviour disorder and excessive time in bed) with moderate-to-high levels of evidence, were linked to higher risk of all-cause cognitive disorders. Furthermore, a U-shaped relationship was revealed for the associations with sleep duration.

Sleep management might serve as a promising target for dementia prevention.