Wow, that is fascinating. The reason I likely haven't come across it is that my interest/research with regards to dementia is sleep specific. I'll definitely be keeping my eyes open for more acetycoline in the further research I come across. Thanks for bringing that to my attention.

I see where you're coming from re: "over-active" brain, and so I'd question if they're equating "over-active" with "reduced sleep", and if there is a commonality there.

I'm not a neurologist, I come from a software engineering background. I've always had an interest in neurology, and got into the sleep-tech field because I've always been an insomniac and started learning more about sleep.