CBD works by interacting with a vast collection of different cells and receptors throughout our bodies that make up the Endocannabinoid System (ECS). The ECS is a molecular system responsible for regulating and balancing many processes in the body, including immune response, communication between cells, appetite and metabolism, memory, and more.
The ECS involves three core components: endocannabinoids, receptors, and enzymes.
Endocannabinoids
Endocannabinoids, also called endogenous cannabinoids, are molecules made by your body. They’re similar to cannabinoids, but they’re produced by your body.
Experts have identified two key endocannabinoids so far:
- anandamide (AEA)
- 2-arachidonoylglyerol (2-AG)
These help keep internal functions running smoothly. Your body produces them as needed, making it difficult to know what typical levels are for each.
Endocannabinoid Receptors
These receptors are found throughout your body. Endocannabinoids bind to them in order to signal that the ECS needs to take action.
There are two main endocannabinoid receptors:
- CB1 receptors, which are mostly found in the central nervous system
- CB2 receptors, which are mostly found in your peripheral nervous system, especially immune cells
Endocannabinoids can bind to either receptor. The effects that result depend on where the receptor is located and which endocannabinoid it binds to.
For example, endocannabinoids might target CB1 receptors in a spinal nerve to relieve pain. Others might bind to a CB2 receptor in your immune cells to signal that your body’s experiencing inflammation, a common sign of autoimmune disorders.
Enzymes
Enzymes are responsible for breaking down endocannabinoids once they’ve carried out their function.
There are two main enzymes responsible for this:
- fatty acid amide hydrolase, which breaks down AEA
- monoacylglycerol acid lipase, which typically breaks down 2-AG