>>14288129that seems like something that'd come to my mind; I have severe ocd. i remember reading a paper that documented over-hydration causing dysfunction in the prefrontal cortex, though I didn't really care enough to look into it, so I'm not sure exactly why.
most nootropics are under-researched; the supplement market, in general, is pretty disingenuous. but if you think your cognitive profile is bottlenecked in some way, there's a possibility of improvement coming with the right medication/supplementation (adhd, etc.). I'd honestly stay away from any nootropics that have only been tested on individuals with dementia of some sort, regardless of whether or not it is elucidated to have assisted in the maintenance of sanity, cognitive ability, etc.