The Endocannabinoid System (ECS) was discovered back in the early 1990’s and has been a focus of many studies since then. Research shows that the ECS plays a significant role within the immune system, stress and pain responses, regulating memories, sleep, metabolism and even reproduction. Interestingly enough, humans aren’t the only ones with an ECS system. Mammals, birds, fish, reptiles and even invertebrates such as mussels and sea urchins have an ECS, too. The ECS system is comprised of three main parts: endocannabinoids (also called endogenous cannabinoids), receptors and enzymes. Endocannabinoids are molecules made by body is what binds to the receptors. There are two endocannabinoid receptors, CB1 and CB2. CB1 receptors are found mostly in the brain and central nervous system. CB2 receptors are found primarily in your immune system but can also be found in many peripheral organs. Once the endocannabinoids have carried out their function there is an enzyme that breaks the connection down. It’s like a telephone call. Endocannabinoids are the message, the receptors are the phone, and the enzymes hang up the phone once the call is done.