CBD OIL AND THE ENDOCANNABINOID SYSTEM
WHAT IS THE ENDOCANNABINOID SYSTEM?
Imagine sitting in a room surrounded by four walls, each covered with 100 thermostats. Each thermostat regulates a vital physiological function. The endocannabinoid system (ECS) unifies the operation of all these "thermostats" into a single dynamic system. As a master regulator, the ECS controls a broad range of physiological processes such as wound healing, blood pressure, pain perception, brain cell production, glucose metabolism, and immune function by regulating inflammation.
"Modulating endocannabinoid system activity holds therapeutic potential for nearly every disease affecting humans."
For example, when we face danger, levels of stress hormones (cortisol and adrenaline) rise in the body. Once the threat passes and the situation normalizes, the ECS slows down the stress response and restores these hormones to their baseline levels.
Similarly, if we are sick, the endocannabinoid system raises our body temperature to help eliminate the "invaders," then brings it back to normal once fever is no longer necessary. If the ECS cannot perform its function adequately, the body cannot slow down the inflammatory response, leading to damage in healthy tissues. (Autoimmune diseases are linked to ECS dysfunction.)
Medical science now recognizes that ECS dysregulation underlies many diseases, including cancer, diabetes, Alzheimer’s, chronic pain, sleep disorders, and addiction. The health benefits of balancing the ECS are so significant that in 2013, scientists Pal Pacher and George Kunos of the United States National Institutes of Health (NIH) stated that “modulating the activity of the endocannabinoid system may have therapeutic potential in nearly every disease affecting humans.”
Some doctors believe that understanding how the endocannabinoid system works is one of the most significant medical discoveries since the advent of sterile surgical procedures.
Given that the components of CBD Oil modulate the endocannabinoid system, it’s easy to see why big pharmaceutical companies are interested in this field. Since 2014, GW Pharma’s product Sativex, which contains CBD* and THC* in a 1:1 ratio, has been available in the UK. Its use is supported by the national health service if other medications fail, primarily in patients with multiple sclerosis. – *CBD and THC are the two best-known and most extensively researched therapeutic compounds found in the cannabis plant. –
Key Milestones in the Discovery of the Endocannabinoid System
The ECS was discovered at the end of the 20th century while researchers were studying the mechanisms behind the cannabis plant’s effects. A major breakthrough was made by Raphael Mechoulam, an Israeli scientist, between the 1960s and 1990s:
1964 – Mechoulam and colleagues identified and isolated tetrahydrocannabinol (THC), the psychoactive component of cannabis.
1988 – The CB1 cannabinoid receptor was first identified in the brain.
1992 – Mechoulam and William Devane discovered the first endocannabinoid, anandamide.
1993 – Discovery of the CB2 receptor, mainly found on immune cells.
1995 – Discovery of the second main endocannabinoid, 2-arachidonoylglycerol (2-AG).
MAIN COMPONENTS OF THE ENDOCANNABINOID SYSTEM
1. Cannabinoid Receptors:
These act like tiny portals on the surface of cells in our brain, central nervous system, and other organs. They receive important signals about what’s happening in the body, allowing these cells to take appropriate actions as needed. There are two main types of cannabinoid receptors: CB1 and CB2. Both are found throughout the body, but CB1 receptors are concentrated in the brain and central nervous system, while CB2 receptors are primarily located in the immune system. Both types are also present in the skin, liver, kidneys, heart, and other internal organs.
Functions of CB1 Receptors
CB1 receptors are mostly found in the central nervous system (brain and spinal cord) but are also present in smaller amounts in other organs. CB1 receptors are concentrated in the following areas and serve these functions:
Brain – especially in the hippocampus (memory and learning), cerebral cortex (thinking and decision-making), basal ganglia (movement control), cerebellum (motor coordination), and amygdala (emotional processing).
Spinal Cord – regulates pain perception and sensation.
Peripheral Nervous System – influences pain sensation and muscle function.
Fat Cells – regulate metabolism and energy balance.
Liver – affects lipid metabolism and insulin sensitivity.
Lungs and Digestive System – regulates bowel movements and appetite.
Reproductive Organs – may play a role in reproductive processes.
CB1 receptors primarily influence nervous system function and thus play key roles in pain relief, motor coordination, memory, appetite, and emotional regulation. The THC present in full-spectrum CBD oils, responsible for cannabis’ psychoactive effects, mainly binds to CB1 receptors.
Location and Functions of CB2 Receptors
CB2 receptors are mainly found in peripheral organs and the immune system, with smaller numbers in the brain. They are most concentrated in the following areas and serve these functions:
Immune cells – macrophages, T cells, B cells (regulating inflammation and immune response).
Spleen – immune function and reducing inflammation.
Tonsils – supporting immune defense.
Gut – regulating inflammatory bowel diseases and microbiome balance.
Liver – controlling liver diseases and metabolic processes.
Bones – maintaining balance between bone formation and resorption.
Skin – treating inflammatory and autoimmune skin conditions, such as eczema and psoriasis.
CB2 receptors primarily regulate the immune system and inflammatory processes. CBD (cannabidiol) indirectly affects CB2 receptor function, which may contribute to its anti-inflammatory and pain-relieving effects.
2. Endocannabinoids:
These are molecules – our body’s own cannabis-like chemicals – that bind to and activate cannabinoid receptors, like keys turning locks. Scientists have identified many endocannabinoids, but the two most common are 2-arachidonoylglycerol (2AG) and anandamide, named after the Sanskrit word "ananda," meaning bliss, since it is known as a mood enhancer. Both 2AG and anandamide interact with the same receptors as beneficial compounds in the cannabis plant, including CBD and THC.
The effect of CBD on anandamide is especially important!
CBD indirectly increases anandamide levels in the body through the following mechanisms:
Inhibition of FAAH enzyme
Anandamide rapidly breaks down in the body due to the action of the FAAH (fatty acid amide hydrolase) enzyme.
CBD inhibits FAAH, allowing anandamide to remain active longer in the body.
As a result, the effects of anandamide are enhanced, potentially contributing to pain relief, reduced anxiety, and overall wellbeing.
Inhibition of Anandamide Reuptake
Normally, anandamide is quickly taken back into cells and broken down.
CBD prevents rapid reuptake of anandamide, allowing it to stay longer in the bloodstream and between nerve cells.
This enables it to influence CB1 and CB2 receptors for an extended time.
Indirect Activation of CB1 Receptors
Anandamide primarily binds to CB1 receptors located in the brain, where they regulate nervous system functions.
CBD does not directly bind to CB1 receptors, but by slowing anandamide breakdown, it indirectly enhances CB1 receptor activity.
This may help reduce stress, anxiety, and pain, as well as provide neuroprotective effects.
What Effects Can the Interaction Between CBD and Anandamide Produce?
Pain Relief
Activation of anandamide and CB1 receptors can reduce chronic pain, such as neuropathic pain or inflammation-related conditions.
Reduction of Anxiety and Stress
Higher anandamide levels may decrease anxiety, improve mood, and help manage PTSD and other stress-related disorders.
Neuroprotective Effects
Increased activity of anandamide may protect nerve cells and aid in neurodegenerative diseases (e.g., Alzheimer’s, Parkinson’s, multiple sclerosis).
Improved Sleep Quality
Anandamide also plays a role in regulating the circadian rhythm, so CBD may help with insomnia and sleep disorders.
Anti-inflammatory Effects
Both CBD and anandamide influence inflammatory processes, which may assist in treating autoimmune diseases such as rheumatoid arthritis and Crohn’s disease.
3. Metabolic Enzymes:
These enzymes are proteins that speed up chemical reactions and regulate levels of 2AG, anandamide, and other cannabinoids. They are involved both in producing endocannabinoids when needed and breaking them down and destroying them once they reach their target.
CBD – THE INTRUDER MOLECULE
Recently, the fourth component of the ECS was discovered — transport molecules that act as "ferries" for endocannabinoids, delivering them where needed. These transport molecules, known as fatty acid-binding proteins, play a crucial role in the effects of CBD Oil.
When scientists identified the endogenous cannabinoids (2AG and anandamide), they puzzled over how these compounds traverse the watery interior of the body. After all, blood is mostly water, and cannabinoids are fatty lipids — oil and water don’t mix well. The breakthrough came in 2009 when specific transport molecules for endogenous cannabinoids were identified.
As the name suggests, these fatty acid-binding proteins bind to fat lipids such as cannabinoids. In the bloodstream, these fatty acid-binding proteins act like a molecular ferry, picking up cannabinoids and carrying them across the cell membrane into the cell's interior, where they interact with receptors on the nuclear membrane’s surface. These are known as peroxisome proliferator-activated receptors, or PPARs, which regulate gene expression, energy metabolism, and other vital physiological processes. It turns out that CBD is a VIP passenger on these ferries, which is a major reason why CBD can have such profound therapeutic effects.
When you use CBD Oil, CBD effectively pushes aside your body’s own cannabinoids (2AG, anandamide), which are waiting to board the molecular ferry, allowing CBD to reach the cell first. This means the natural cannabinoids spend more time at the cell surface, giving them more opportunity to activate CB1 and CB2 receptors.
Essentially, CBD blocks the reuptake of cannabinoids produced by your own body, extending their lifecycle and thereby potentially providing enhanced therapeutic benefits. CBD boosts the “tone” of the endocannabinoid system by exposing it to extended cannabinoid activity. This may be one of the key mechanisms through which CBD helps protect the brain, relieve stress, and combat certain diseases.
However, this is not the only way CBD interacts with the endocannabinoid system. Besides increasing endocannabinoid levels, it can also alter and modulate cannabinoid receptor function. THC — the psychoactive compound in cannabis — directly binds both CB1 and CB2 cannabinoid receptors like a key fitting into a lock, activating these receptors. In contrast, CBD does not directly bind to cannabinoid receptors to initiate a signal but rather fine-tunes the signaling triggered by THC or an endogenous cannabinoid.
Preclinical studies show that CBD acts as an allosteric modulator of the CB1 receptor, meaning it influences receptor signaling without actually initiating the signal itself. Think of the CB1 receptor as a volume control; CBD turns the dial down. This mechanism explains how CBD can reduce THC’s psychoactive effects without diminishing its therapeutic benefits.
At the same time, CBD enhances CB2 receptor signaling, which regulates inflammation and immune cell activity. How and why CBD triggers an anti-inflammatory response and other effects through CB2 activation remains a scientific mystery.
What is clear is that CBD fine-tunes the endocannabinoid system by modulating CB1 and CB2 receptor activity in opposite directions — dampening the former and amplifying the latter. This dual action may have profound positive effects, particularly in metabolic disorders, obesity, liver diseases, and other diet-related conditions.
Summary
The endocannabinoid system is a key regulatory network in the body that helps maintain internal balance and plays a role in regulating pain perception, inflammation, sleep, mood, and immune function, among other processes.
Through the phytocannabinoids derived from cannabis, CBD Oil interacts with this system: indirectly influencing the function of CB1 and CB2 receptors and helping enhance the effects of the body’s own endocannabinoids, such as anandamide. Thanks to this, it supports the body’s natural balance and wellbeing.
Rather than targeting a single issue, CBD Oil supports the body's regulatory processes through the endocannabinoid system, contributing to balanced functioning and overall health.
It’s important to mention that CBD Oil is not a miracle cure! The foundations of maintaining our health are regular exercise, a balanced diet, and a stress-free lifestyle. CBD does not replace any of these! Always consult your healthcare provider before using a CBD-containing product!
Follow our blog for useful CBD Oil content!
Read about the effects of CBD Oil here!
cbd oil cbd oil purchase
OUR BEST CBD OILS
