Endocannabinoid System: Definition & CBD's Role

    Endocannabinoid System: Definition & CBD's Role

    Definition

    The endocannabinoid system is a network of receptors found throughout the human body, involved in regulating several physiological functions. It relies mainly on two receptors: the CB1 receptor, identified in 1990 and located mostly in the brain and nervous system, and the CB2 receptor, identified in 1993 and found mainly in the immune system.

    How the Term Is Used

    This is the system that CBD, THC, and other cannabinoids stimulate or modulate when consumed. The CB1 receptor is notably the target of anandamide, a cannabinoid the body produces naturally, as well as of THC. The CB2 receptor, meanwhile, is associated with the anti-inflammatory response. Research suggests a role for the endocannabinoid system in regulating sleep, appetite, and pain perception — this biological mechanism is what scientifically explains why cannabinoids attract interest beyond their simple culinary use.

    Key Takeaways

    • The endocannabinoid system relies on two main receptors: CB1 and CB2.
    • The CB1 receptor is found mostly in the brain and nervous system.
    • The CB2 receptor is located mainly in the immune system.
    • The body produces its own cannabinoids, such as anandamide, which act on this system.
    • Research points to a role in regulating sleep, appetite, and pain, though this isn’t an established therapeutic claim.
    • Cannabinoid — the family of compounds (natural, plant-derived, or synthetic) that interact with this system.
    • CBD — a hemp cannabinoid that interacts with this receptor network more indirectly than THC, without binding directly to CB1.

    FAQ

    What does the endocannabinoid system do? It’s a network of receptors involved in regulating several physiological functions, including sleep, appetite, and pain perception.

    What’s the difference between the CB1 and CB2 receptors? CB1 is found mostly in the brain and nervous system, while CB2 is located primarily in the immune system.

    Does CBD act directly on these receptors? CBD interacts with the endocannabinoid system more indirectly than THC, which binds directly to the CB1 receptor.