http://www.techtimes.com/articles/199356/20170226/more-than-nine-hours-of-sleep-could-indicate-alzheimers-disease-here-are-other-warning-signs-of-dementia.htm
Citando:
"Although the researchers did not find a heightened dementia risk for individuals who had been sleeping for nine hours or more a night for more than 13 years, they noticed an increased risk for those who recently started to sleep for more than nine hours.
The researchers found that new long-sleepers have an increased likelihood of developing dementia. Those who recently started to sleep for more than nine hours were found to have a 20 percent increased likelihood of being diagnosed with the neurological condition. They also appeared to have smaller brain volumes."
