[kzz102]

The study does not prove causality: it is right in the title of the paper: Association Between Slow-Wave Sleep Loss and Incident Dementia.

Sorry for the rant: we should not share university press release articles, they are always clickbait. Just share the research directly.

[bradley13]

You're right about the journal paper, but the pop-sci title implies causation. So, for those who didn't click all the way through: There is zero proof of causation. It may well be that people getting dementia have increased problems sleeping. Or both may be caused by some third factor.

[bookofjoe]

dang I smiled when I read this comment