The primary functions of ECS appear to be maintaining the body’s homeostasis and teaching the body to recover from stress. They are also effective in the endocannabinoids in different regulatory systems and, for example, reduce blood pressure, body temperature, pain and fear perception, regulate muscle tension and stimulus conduction in the brain and stimulate appetite and reward-behavior.
With the discovery of the two cannabinoid receptors, CB1 and CB2, the molecular basis for the effectiveness of ?9-THC was explained and the existence of an endogenous cannabinoid system was postulated for the first time.
CB1 receptors are present in many areas of the central nervous system (CNS) in high densities and are among the most common G-protein-coupled receptors in the brain. They are also found in various peripheral organs (spleen, stomach, spinal cord, lungs, etc.) to a lesser extent.