Most days I microdose by diluting extract in glycerine, roughly 1/4 of a joint paced out thru the day.

Works wonders for my EDS, and I don't feel high at all and have a ton more executive control.

Can't really reply on the cognitive decline but I'm pushing 50 and still in the top .5%

Long Covid did drop me a bit tho, but I guess when you start with a straight eight, losing two cylinders isn't so bad.

The actual paper published is about smaller doses.

It would be better to microdose lithium if you really don't want to be high imo. 5-20mg range, can be intermittent (doses for bipolar are in the 100mg range and up). There's already lithium in some water supplies and in foods like potatoes, so a small amount in a microdose normally doesn't affect anyone negatively.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10227915/

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8324565/

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10994667/#:~:text=In%20the%20present%20work%2C%20long,aging%20process%20of%20SAMP%2D8.

I will say over time your body will adjust to cannabis so if you microdose at night consistently before bed, you'll just sleep it off anyway and eventually it won't even get you high anymore.