Journal of the American Academy of Neurology “Slow EEG sleep is related to dementia”
Slow wave sleep after age 60 ↓ Risk of developing dementia ↑
Academics: “Deep sleep eliminates factors related to Alzheimer’s disease”
Research results have shown that as people age, slow brain wave sleep, a type of deep sleep, decreases and the risk of developing dementia increases.
According to CNN on the 30th (local time), the study’s lead author, Matthew Paiz, associate professor of psychology and neurology at Monash University in Australia, said, “We found that a decrease in the deepest stage of sleep, known as slow brain wave sleep, is associated with aging and the development of dementia. “I found it,” he said. The study was published in the Journal of the American Medical Association (JAMA Neurology) on the 30th.
“We found that people who had greater declines in slow-wave sleep as they aged had a higher risk of developing dementia over the next 17 years,” says Phase.
◆The rate of decline in slow wave sleep accelerates from the age of 60… The likelihood of having cardiovascular disease increases.
The researchers surveyed 346 people, with an average age of 69, who participated in the Framingham Heart Study and conducted a total of two overnight sleep studies to observe their sleep status. The study was conducted once between 1995 and 1998 and once between 1998 and 2001. The Framingham Heart Study began in 1948 at the National Heart, Lung, and Blood Institute and identifies factors that cause cardiovascular disease.
The researchers examined whether changes in the amount of slow-wave sleep the participants received were associated with the development of dementia up to 17 years after they completed the sleep study.
Up to that point, 52 participants had been diagnosed with dementia. It was confirmed that the rate of decline in slow wave sleep accelerated from the age of 60, peaked between the ages of 75 and 80, and slowed down thereafter.
People who experienced reduced amounts of slow-wave sleep were also more likely to have cardiovascular disease and were more likely to take medications that affect sleep. He also had a gene that increased his chances of developing Alzheimer’s disease.
◆ As we age, dementia-related factors accumulate in the brain… It can only be eliminated if the quality of sleep is high.
Sleep is largely divided into REM sleep and non-REM sleep. Slow wave sleep is the third stage included in non-REM sleep, which means deep sleep. During this stage, our body removes unwanted or potentially harmful substances from the brain, including beta-amyloid protein, which is critically involved in Alzheimer’s disease.
“Slow-wave sleep appears to be the most restorative for the brain,” said Dr. Richard Isaacson, director of the Florida Institute for Neurodegenerative Diseases, who was not involved in the study.
“As we age, the accumulation of beta-amyloid in the brain has a negative impact on the amount of sleep we get,” said Dr. Rudolf Tanzi, director of genetics and aging research at Massachusetts General Hospital. He added, “Therefore, if you do not get enough slow-wave sleep, less beta-amyloid is removed, which leads to a vicious cycle of developing Alzheimer’s disease.” He did not participate in this study.
Faze advised people to make getting a good night’s sleep a priority. “Sleep is important for many aspects of your health, and can help protect your brain, especially as you age,” he said.
Source: Donga
Mark Jones is a world traveler and journalist for News Rebeat. With a curious mind and a love of adventure, Mark brings a unique perspective to the latest global events and provides in-depth and thought-provoking coverage of the world at large.