You may already know that poor sleep is associated with a higher risk of dementia – and this seems to be especially true in midlife.
But what exactly does “poor sleep” mean?
Well, we know that sleeping more or less than seven to eight hours a night seems to be linked to the condition (though it can be hard to work out whether the condition causes the symptom or vice versa).
And “frequent” daytime napping that an older person doesn’t mean to take is also tied to greater odds of developing dementias like Alzheimer’s.
Meanwhile, according to a University of Arizona and University of Southern California paper, three sleep habits in midlife were associated with greater white matter hyperintensity (WMH)...
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