According to a new study published in the August 23, 2017, online issue of Neurology , the medical journal of the American Academy of Neurology.
Your chances of suffering from dementia increases with the reduction of time spent sleeping, especially during the REM stage.
What is referred to as REM is that sleep stage when dreaming occurs, during which the eyes move rapidly and there is increased brain activity as well as higher body temperature, quicker pulse and faster breathing.
“Sleep disturbances are common in dementia but little is known about the various stages of sleep and whether they play a role in dementia risk,” said study author Matthew P. Pase, PhD, of Swinburne University of Technology in Australia. “We set out to discover which stages of sleep may be linked to dementia and while we did not find a link with deep sleep, we did with REM sleep.”
It was discovered that with every percent reduction in REM sleep there was a 9 percent increase in the risk of dementia.
“Our findings point to REM sleep as a predictor of dementia,” said Pase. “The next step will be to determine why lower REM sleep predicts a greater risk of dementia. By clarifying the role of sleep in the onset of dementia, the hope is to eventually identify possible ways to intervene so that dementia can be delayed or even prevented.”
American Academy of Neurology (AAN). “Less REM sleep tied to greater risk of dementia.” ScienceDaily. ScienceDaily, 23 August 2017. <www.sciencedaily.com/releases/2017/08/170823185411.htm>.