/kə-ˈna-bə-ˌnȯid ‘wən ‘ri-ˈsep-tər/
- A vitally important protein in the body’s endogenous cannabinoid system (ECS). CB1 is the main target of delta-9-THC, the primary intoxicating ingredient in cannabis. THC is an agonist, or activator of the CB1. THC must bind to the CB1 receptor for a person to feel the cannabinoid’s intoxicating effects.