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Pro: Salk Institute Con: Preliminary Research, In Vitro
This appears to be dated 2016. Did the preliminary results amount to anything?
Man, too bad weed gives me bad panic attacks. Alzheimers is the scariest disease I know so maybe if the studies pan out in time and it becomes a standard preventative, I might consider trying again.

But somehow I doubt it will be found to be that effective.

Try really low doses.

I hate being truly high, but a weed "buzz" is great for falling asleep, especially when ill (I often suffer more from severe lack of sleep than from any of the other effects of whatever common virus or bacterial infection I manage to catch). It doesn't take much for a lightweight (a status I have carefully maintained) to reach "buzz" territory, and only a little more to reach "properly high" territory (which, again, I find rather unpleasant).

I'd suggest edibles and starting at 2mg, max, for a first attempt, working up 1mg at a time (in a totally different session, on another day!) until desired effect achieved. Like I've been at this a while and a 10mg gummy, which is a common single-gummy dose size in many states, will take me past where I ever want to be. 5ish is about right for me, maybe up to 8 if I need a stronger kick for some reason (like, say, I'm sick and need to get high enough to sleep most of the night despite significant sinus discomfort or throat pain)

FWIW I also doubt the anti-Alzheimer's stuff will pan out, or if it does, it'll be some targeted therapy with specific chemicals, which won't look a lot like any products from a dispensary.

Remove them and replace them with...Doritos?
There are easily hundreds of compounds that can reduce beta-amyloid in vitro. This is a decade-old nothingburger.
I only had time to skim the paper. Notably, the effect is concentration dependent and required high concentrations of THC. The chart shows it really starting in the 0.1uM range and then taking off in the 1uM range.

I don’t know what levels are achieved during normal use but I did find some studies that successfully killed a lot of hippocampal neuronal cells after 6 days at 1uM range. So the levels of THC observed in this study appear to be in the same range where things start getting really disrupted in cells.

In other words, don’t expect to replicate these results with normal recreational use.

quick back of the envelope:

this would require 3 joints of ~ 300 mg cannabis at ~ 30% THC content.

the legendary MTF strain regularily trumpets a 25-30% THC content.

now if bioavailability is 30% that means you need 9 or 10 joints to get a 1 micro molar total dosage. that dose is distributed across body mass.

at this point, i cant say i could conceive of anyone smoking basically an 1/8 ounce of MTA in one day, let alone at one sitting, and doing that for 6 days in a row sounds frightening, not recreational.

https://en.wikipedia.org/wiki/Tetrahydrocannabinol

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Get stupid now to avoid cognitive decline later? Not sure I like that tradeoff...
Do we still think clearing beta amyloid plaques will halt the progress of Alzheimer's? My impression is we're treating marker for the disease and not the cause.
Too bad we've had like a half-dozen putative Alzheimer's drugs that clear amyloid beta that turn out to do nothing to slow or prevent Alzheimer's.

Actually, I think even by 2016 we already had enough phase 3 drug failures that the amyloid hypothesis was severely called into question?

Anecdotally, when I'm feeling scattered and foggy, when I take a big hit off of my vape pen, I go through a period of noticing how shaky my appendages are, and go through what feels like a physical process of the sensation of my mind "unwrinkling" or unfurling. I often wondered if something was being cleaned out in my brain because I usually feel a lot more calm and still afterward, thoughts more collected.
And yet, has anyone ever claimed regular marijuana use improved their memory?
There was another recent study showing that THC was creating false short term memories - like "I swear I told you that" - but never did.
There was another recent study showing that THC was creating false short term memories - like "I swear I told you that" - but never did.

Cannabis really needs a lot more study.

I have more trust on 40 hz ultrasound therapies.
"reefer madness" has put legitimate research of that plant back immeasurably