The JAMA Neurology study found that both sleeping six hours or less and sleeping nine hours or more per night were associated with more depressive symptoms and more napping compared to sleeping seven or eight hours per night.
Sources
- How much sleep keeps cognitive decline at bay? - Harvard Health (health.harvard.edu)
- https://pubmed.ncbi.nlm.nih.gov/34459862/ (pubmed.ncbi.nlm.nih.gov)
- https://www.alzheimer-europe.org/news/new-research-jama-neurology-explores-impact-sleep-duration-amyloid-accumulation-and-cognitive?language_content_entity=en (alzheimer-europe.org)
- https://jamanetwork.com/journals/jama/article-abstract/2785733 (jamanetwork.com)
More in Science
- A 2021 New England Journal of Medicine study published August 5, 2021, in volume 385, issue 6, pages 516–525, compared milrinone with dobutamine for treating cardiogenic shock.
- The meta-analysis on glucose control in critically ill adults was registered under PROSPERO number CRD42021278869 and funded by the Australian National Health and Medical Research Council, among others.
- The HYVET trial was stopped early in July 2007 after 140 strokes and 7399 patient-years of follow-up.
- Researcher Irina Conboy found that joining the circulatory systems of old and young mice improved the older animals' ability to heal from injury.
- A fossil snail found in sediment layers beneath the glyptodont skeleton at the same site was previously dated to about 32,000 years old.
- A 2025 paper by Kubo, Mieno, Uryu, Terada, and Veríssimo titled 'Banning wildlife trade can boost the unregulated trade of threatened species' was published in Conservation Letters.