The time individuals go to bed and how much sleep they get may increase their chance of getting dementia, according to a recent study that was published in the Journal of the American Geriatrics Society.
During an average follow-up of 3.7 years, 97 individuals in a study of 1,982 older adults in China who were dementia-free at the beginning of the study developed dementia.
The risk of dementia was 69% greater in those who slept for more than 8 hours (compared to 7-8 hours) and twice as high in those who went to bed before 9 p.m. (versus 10 PM or later).
“This suggests that cognitive function should be monitored in older adults who report prolonged 102time in bed and advanced sleep timing,” the authors wrote.