The human body contains recently discovered receptors called CB1 and CB2. Scientists believe that these receptors are linked to several functions, including appetite, emotions, mood, coordination, movement, and pain. CB1 is found in the brain, while CB2 receptors are in the immune system. Accordingly, cannabinoids like CBD oil are compounds that naturally interact with those receptors in the body, activating them in the process. Therefore, the ingestion of CBD can improve the endocannabinoid function of the body.