Though people with dementia tend to face sleep disruptions, it’s a bit of a “chicken and egg” link: “Does poor sleep increase dementia risk, or does dementia lead to poor sleep?” Alzheimer’s Society said.
“Some researchers believe that both of these theories could be true, and the relationship could be circular.”
Whatever the direction of the link, though, one paper found that those who got fewer than six hours of sleep in midlife were less likely to develop dementia.
And a new paper published in PLOS One, which involved data from dozens of other studies, says there may be a “sweet spot” for reducing dementia risk.
Seven to eight hours’ sleep may be best for reducing dementia risk
The data the...
English (US)