The human bodies produce their own Cannabinoids called endocannabinoids. The endocannabinoid system (ECS) regulates everything from relaxation to eating, sleeping, inflammation, and even cognitive function. In a nutshell, the ECS is responsible for making sure the entire body is working optimally. Our bodies have two receptors for cannabinoids, called the CB1 receptor and CB2 receptors.
CB1 receptors are found mainly in the brain, nervous system, connective tissues, glands and organs. The CB1 receptors in the brain deal with coordination and movement, pain, emotions, mood, appetite, memories, and other functions. THC attaches to these receptors.
Alternately, CB2 receptors are primarily found in the immune system and the structures associated with the immune system. They affect pain and inflammation.
Researchers once believed that CBD attached to CB2 receptors, but now it appears that CBD does not attach directly to either receptors. Instead, it seems to direct the body to use more of its own cannabinoids. CBD has been medically proven to positively regulate your ECS.