[root_axis]

Sorry if my post was a little unclear, I am aware that some marijuana users sometimes experience anxiety as well as the other risks and symptoms you describe, I was specifically referring to the suggested disparate effects of indica vs sativa strains.

> to put it black-and-white: sativa gets one high, while indica gets one stoned.

It's not the first time I've heard this idea, but I have never seen an authoritative source, only the suggestion from marijuana connoisseurs that it is the case. Studies have shown that almost all commercially available marijuana is mislabeled and that many popular marijuana strains are not necessarily chemically distinct despite evident morphological differences - that is to say, most people probably don't know what they're consuming so it may not be wise to rely on the wisdom of the crowd to vet these ideas.

[smcnally]

The Open Cannabis Project curates data from testing labs, the NIH, and elsewhere.

https://opencannabisproject.org/external-data-resources/

I have not seen the mislabeling studies you note. Most of the labels -- strain names -- are not intrinsically meaningful anyway.

w/r/t being chemically distinct, the research I've read show clear differences in cannabinoid and terpene composition between major strains, hybrids created from those, and within all of these per particular harvest, origin, conditions.

The pharmacological effects of those compositions on you won't be exact -- they provide guidance.

https://www.cancer.gov/about-cancer/treatment/cam/hp/cannabi...

(ibuprofen, gin, and brussel sprouts don't effect you and me exactly the same way, either, but we have the general idea of what's involved.)

there's more anecdotal evidence than hard scientific research available because cannabis has been consumed for 3,000 years, but it's been an illegal narcotic in the US for the last 60.

[Fnoord]

Well, they'll always contain a % of THC and CBD. Together with their taste and freshness, people become a regular of a certain strain from a certain shop because then these factors are the most static.

If you check strains on e.g. Leafly you can see that most are hybrids, and you can also see their ancestry (how they came about). Although in the shop I worked, hybrids weren't sorted as such; all strains were sorted on effect. Clerks were smokers themselves, so they knew what they were selling, because they knew whether they'd get stoned or high. New strains were enthusiastically tested.