David Merrill, a geriatric psychiatrist and director of the Pacific Neuroscience Institute’s Pacific Brain Health Center in Santa Monica, CA, about this study. Doctors can educate adults on strategies to optimize sleep and also help to screen for sleep disorders,” he added. “Much like people make time to fit physical activity into their schedule, people should also make time for sleep of sufficient quality and duration. These findings further reinforce the need for adults to prioritize good sleep as part of a healthy lifestyle,” Dr. “Good quality sleep is important for many aspects of health, but poor sleep is not really thought of as a dementia risk factor. The scientists also reported that, on average, the amount of deep sleep each study participant had declined between the two sleep studies, indicating slow-wave sleep loss due to aging. Therefore, we were not surprised to see that greater declines in deep sleep were associated with a higher risk of dementia.” It also helps to protect against other dementia risk factors, like high blood pressure. It helps remove metabolic waste from the brain and also to consolidate memories. “We know that deep sleep is critical for an aging brain. Upon analysis, the research team found a total of 52 cases of dementia.Įven after adjusting for a variety of factors, including age, sex, and sleeping medication use, researchers found each percentage decrease in deep sleep each year was associated with a 27% increase in the risk of dementia. “For the purpose of informing dementia prevention guidelines, we were interested in clarifying how sleep changed with aging and whether changes in sleep with aging were associated with dementia risk,” he added.ĭecreased deep sleep increases dementia risk “Since we don’t have any readily available curative treatments to halt or reverse dementia permanently, we were interested in understanding ways in which dementia can be prevented in the first instance,” he said. Matthew Pase, associate professor at the Monash School of Psychological Sciences and the Turner Institute for Brain and Mental Health in Melbourne, Australia, and senior author of this study told Medical News Today. “Responding to the rising prevalence of dementia is one of the most critical challenges of our time,” Dr. Scientists also followed the study participants from the time of their second sleep study until 2018, looking for dementia diagnoses. Researchers reported that, on average, the amount of deep sleep each participant had declined between the two studies, indicating slow-wave sleep loss due to aging. All of the chosen participants had completed two overnight sleep studies, with about five years between each sleep study. Clarifying the link between sleep, aging, and dementia riskįor this study, researchers from Monash University in Melbourne, Australia examined data from 346 study participants over the age of 60 enrolled in the Framingham Heart Study.
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