The endocannabinoid system (ECS) is a complex cell-signaling system found in the human body that plays a crucial role in regulating various physiological processes. It consists of endocannabinoids, which are naturally occurring compounds, receptors, and enzymes. The ECS helps maintain balance, or homeostasis, by influencing functions such as mood, appetite, pain sensation, and immune response. The two main types of receptors in the ECS are CB1 and CB2 receptors. CB1 receptors are primarily located in the brain and central nervous system, while CB2 receptors are found in the immune system and peripheral tissues. The ECS interacts with cannabinoids, which can be derived from sources like cannabis, to modulate these bodily functions.