Earlier quoted context omitted.
I wonder: what's the relationship between marijuana 'strength' (measured in THC, I guess) and medical effectiveness? It seems to me the studies in the posted article are from a time when marijuana was dramatically 'weaker' than what you get today.
There are 3 main active ingredients in marijuana: THC, CBD, and CBN. The places I go get their strains and edibles/topicals/whatever lab tested so you know the %s of each. In general, higher CBD+CBN levels are better for pain relief and insomnia and will cause more grogginess/drowsiness than strains higher in THC which are more for appetite stimulation, euphoria, anxiety relief, etc. At least in SF the legitimate dis…
For more modern up to date science backed information on CBD see projectcbd.org
CBN is not a primary cannabinoid, it's a breakdown product of THC and simply indicates how old or stale the cannabis is. It's primary effect is grogginess and general unpleasantness so you want to avoid it as much as possible.
Any dispensary that says CBD is good for insomnia is simply repeating long disproven but widely spread information.