The human body has a complex eco cannibidoid system, I don't think it's a freak coincidence that there is vegetation on the planet that supports this system.
Doctors and nutritionists tell us vegetables are good for us, with the exception of marijuana because the FDA will pull their license to practice for recommending a non-FDA approved treatment.
I queried my vet today about treating my Lab with CBD due to his somewhat extreme anxiety when riding in a car, Benadryl and other recommended medications don't phase him. She told me that she would lose her license for recommending non-FDA approved treatment as well. Then mentioned she has two human friends that are living proof that RSO works.
It appears the lobbyist, big pharma, politicians, and other entities of the government want our money much more than our health. Since marijuana is a plant it cannot be patented in a manner that allows the 'players' big profit.
Here's a little Eco Cannabinoid System info:
https://en.wikipedia.org/wiki/Endocannabinoid_system