A cannabinoid is one of a class of diverse chemical compounds that acts on cannabinoid receptors, also known as the endo... More receptors are part of our The endocannabinoid system (ECS) is a biological system composed of endocannabinoids, which are endogenous lipid-based r... More and are activated by Endocannabinoids are substances produced from within the body that activate cannabinoid receptors. After the discovery o... More or plant cannabinoids, such as CBD. They sit on the surface of cells and wait for cannabinoids to come along and bind with them. When they get together, they tell your body to ‘do’ certain things to make sure that all of your body’s systems are in balance (see Homeostasis refers to our ability to maintain a state of internal balance and physical well being despite changes or ext... More). There are two major cannabinoid receptors that are the best studied. CB1 receptors are primarily located within the brain / central nervous system, as well as in the lungs, liver and kidneys. CB2 receptors are mainly found in the immune system, spleen, and gastrointestinal system.