And if finally it was not good to sleep too long? According to a recent study, to go to bed late and sleeping less than eight hours would reduce the risk of dementia in seniors. Indeed, according to the researchers, older people who go to bed early and sleep long are more likely to develop dementia.
Specifically, those over 60 who are in bed before 9 p.m. and sleep more than eight hours have a 70% increased risk of suffering from dementia, a Chinese research team from Shandong University has found.
Variations in sleep
Experts warn those who start sleeping more than usual, it could be an early sign of dementia. According to them, these people should be monitored and screened for dementia. These findings were published in the Journal of American Geriatrics Society.
This study was conducted using sleep data from 2,000 participants between the ages of 60 and 74. As part of this research, each answered questions about their regular sleep and was assessed regarding their cognitive function. The participants were followed for an average of four years to measure their sleep patterns and brain health.
These results are a surprise because, generally, long, quality sleep is associated with quality brain health. However, previous studies have already warned against abnormal sleep patterns. These can be a harbinger of cognitive decline.