https://www.allbud.com/learn/story/high-cbd-cannabis-strains-anti-inflammatory-proper

Cannabidiol (CBD) is the non-psychotropic cannabinoid believed responsible for many of the medical and therapeutic benefits of cannabis. Because CBD interacts with the endocannabinoid system (ECS) in a way that doesn't produce the euphoric high associated with marijuana, marijuana strains high in CBD and low in psychoactive tetrahydrocannabinol (THC), it is an appealing treatment option for patients seeking anti-inflammatory, anti-pain, anti-anxiety, anti-psychotic, and/or anti-spasm effects, without the troubling side effects of lethargy or depression. Strains that contain at least 5 percent CBD are considered CBD Rich strains.