There are two types of cannabinoids:
phytocannabinoids - found in plants (e.g. THC, CBD, CBN),
endocannabinoids - found in the human and animal body.
Cannabinoids are commonly known as secondary metabolites. This means that they are chemicals produced by the plant that do not play an essential role in plant development. However, secondary metabolites act as the plant's immune system to fight off predators, parasites and pests.
Because humans and other animals have a receptor system that binds to cannabinoids, we can benefit from their absorption both in health and recreation. This system is called the endocannabinoid system. It is a group of specialized signaling chemicals that are key. Their receptors are locks. In addition, there are metabolic enzymes that produce and break them down. These "keys" act on the same receptors (CB1 and CB2) that CBD and THC, for example, act on indirectly.
Feelings, emotions, feelings in the mind and body are controlled by cannabinoid receptors, which are designed to interact with, among other things, the cannabinoids found in plants. Cannabinoids also occur naturally in our body. When necessary, they are produced by the brain. Sensations that are under the control of cannabinoid receptors include pleasure, appetite, mood, pain, sensation, concentration, immune suppression, and memory, for example. Endocannabinoid receptors are divided into two categories: CB1 and CB2. These are designed to interact with endocannabinoids naturally produced by the brain. There are times when the body needs extra protection so that the receptors can react with CBD and be stimulated by other cannabiniodes produced by the plants.
While CBD doesn't really bind to either of the two cannabinoid receptors (CB1 and CB2), it does activate certain non-cannabinoid receptors. In addition, CBD increases the levels of naturally produced cannabinoids by inhibiting the action of enzymes that break them down. It also works through numerous channels that work completely independently of any receptors. Such receptors are, for example, opioid receptors, which are the primary target of analgesic pharmaceuticals and opioid drugs such as morphine, heroin and fentanyl. CBD itself can also react with dopamine receptors responsible for regulating our behavior, cognitive apsects as well as the desire for self-development and the so-called "willingness to seek a reward", which is simply the motivational aspects.
CBD cannabinoid must cross the cell membrane by attaching to a fatty acid-binding protein. This protein accompanies some lipid molecules inside the cell. Intracellular molecules also transport tetrahydrocannabinol (THC) and even the cannabinoids produced by the brain, anandamide, and 2AG. Cannabidiol competes with our endocannabinoids, which are fatty acids, for the same transport molecules. Inside the cell, Anandamide is broken down by FAAH (fatty acid amide hydrolase), which is a metabolic (energy) enzyme. CBD, by reducing anandamide's access to FABP transport molecules, delays endocannabinoid entry into the cell.