Why isn’t the endocannabinoid system taught in medical schools?

Meg Hartley for Leafly
Published on January 10, 2020· Last updated July 28, 2020

I am currently dependent on medical cannabis, and despite loving the plant, I’m kinda bitter about this fact. And it’s not the usual lamenting of “Why me?” that so often goes with illness; it’s because the medical professionals I encounter have little to offer about the origin and treatment of my disease, fibromyalgia. A major reason that they’re at a loss with it—and so many chronic illnesses like it—is because it may be sourced in the endocannabinoid system (ECS).

As a Leafly reader, you might already know that the ECS is a bodily system made of receptors located throughout the body and that it works with all other systems to maintain homeostasis, or optimal functionality.

But did you know that this vital system isn’t covered in medical school despite the fact that studies worldwide have been articulating its prowess since 1992?

Medical schools are “too full” for additional information

And do you know what their primary reason is? Because they say they “don’t have time to teach it.” That’s right—med schools are apparently no longer open to integrating new science into their curriculums. We reached out to many medical schools for comment, but repeated emails went without response.

“The typical response is, ‘What will we eliminate?’ However, that ignores the importance of this system and its fundamental role in regulating physiology in every aspect.”

According to Dr. Ethan Russo, board-certified neurologist and psychopharmacology researcher, the common response is that they’d have to remove something else from the curriculum to make room for it.

According to Dr. Russo, “The medical curriculum is just jam-packed. I went to med school back in the ‘70s, and even at that point there was just no slack in the schedule. What one has to cram into particularly the first couple years of basic science, is rather astounding. And now there’s been an additional 40 years of scientific discovery that also has to be incorporated. Administrators are always going to be defensive about that. The typical response is, ‘What will we eliminate?’ However, that ignores the scientific importance of this system and its fundamental role in regulating physiology in every aspect.”

One would hope that the response to realizing there is a vital bodily system missing from medical school curriculum would be something thoughtful, like, “This system works with all of the other bodily systems and is essential to maintaining health in the body—maybe it’s time to reassess and reorganize.”

But, alas, the party-line solution is actually to just not teach another piece of medicine, which would remove it from practice. It’s as if medicine goes into a tool belt, and rather than reconfiguring a more suitable tool belt when full—they’d instead just toss aside an irreplaceable tool.

The ECS is integral to the function of all the “major” systems

Dr. Russo says that the idea of not educating doctors on the ECS is incomprehensible because it is fundamental to how our bodies work.“A prime example is that there are more cannabinoid receptors in the brain than there are for all of the neurotransmitters put together,” he said.

“One could easily argue that you can’t understand how neurotransmitters in the brain work without knowledge of the endocannabinoid system.”

As you’ve probably ascertained, this is a fact with significant implications. He continues, “One could easily argue that you can’t understand how neurotransmitters in the brain work without knowledge of the ECS.” Additionally, he confirmed this could also imply that there are more opportunities for cannabis to work with the body than pharmaceuticals.

The ECS is also responsible for maintaining the homeostasis of all of the other bodily systems—which is a fancy way of saying that it keeps balance in the other systems, ensuring that they are functioning optimally. It’s also often described simply as the way the brain communicates with the body. Or, as Russo put it in our interview, “Everything in the body is connected, and this is the glue.”

Because the ECS appears to regulate actually recognized bodily systems, many things go awry when it doesn’t function correctly. Endocannabinoids have been observed to directly and indirectly influence a variety of physiological systems that control appetite, pain, inflammation, thermoregulation, intraocular pressure, sensation, muscle control, energy balance, metabolism, sleep health, stress responses, motivation/reward, mood, and memory.

These functions are not minor details—if you were to lose even a single one of these abilities, it could significantly alter your daily life. Chronic illnesses, which last three months or longer and are generally considered “incurable,” affect 40% of Americans. Why is it that so many of our bodies are afflicted with conditions that modern medicine cannot do anything to absolve?

Could it be that we’re missing a crucial piece of the puzzle? Surely, there must be something else going on.

What do cannabis and pharmaceuticals have to do with it?

When asked why the ECS isn’t being taught in medical schools, another common response was that there are presently very few medications that interact with it—but how will there ever be if the medical community doesn’t even regard it in the first place? And why does it matter, anyways—do doctors only need to know about bodily systems that can be treated via the pharmaceutical industry? (And even the answer there is a plutocratic ‘yes,’ then do the available synthetic cannabinoids not count?)

These are apparently not questions that are often discussed in the medical community. The basic consensus seems to be that though medical students ought to be taught about all illnesses—not just those that there are presently pharmaceuticals for—that’s simply not how it works.

Another factor is, of course, the federally-illegal status of the plant that works so adeptly with the ECS; still holding its ancient and never-been-true title of ”Schedule I–Drug with no currently accepted medical use.” But since the ECS generally functions without the help of cannabis (thanks to our naturally occurring endogenous cannabinoids), one wonders why this is show-stoppingly relevant—again, shouldn’t doctors need to know about bodily systems that don’t already have viable medications? Isn’t that all the more reason they should be trained in what we do know about the ECS, so they may help patients keep the vulnerable system unharmed?

This next revelation will not surprise you: According to Russo, stigma around cannabis and a lack of funding as a result also appear to play a role in this reckless and willful knowledge gap, “One has to imagine that a prejudice against cannabis, fear of cannabis, and lack of funding is spilling over into a pejorative effect on education about the endocannabinoid system.”

Hope and change

Even though Russo says that grad students rarely want him as a mentor, some colleges are hedging their bets that tomorrow’s generation will have a different take. The University of Maryland School of Pharmacy is one such school, now offering a Master of Science (MS) in Medical Cannabis Science and Therapeutics. Leafly talked with Andrew Coop, PhD, their Professor and Associate Dean for Academic Affairs, who seems hopeful that logical changes in this area are on the way.

“The reason we started the program was because so few programs focus on the health benefits of marijuana,” Coop said, “the pluses, the minuses, the strengths, where further research needs to go, where the indications have good strong evidence, where there is no strong evidence. We are teaching 150 students at the master’s level to understand all aspects—but also to be able to critically assess what the current state of the art says and doesn’t say, and what further studies need to be formed so that we can move forward in a systematic manner.”

Their twelve courses cover a comprehensive range of topics, from an introduction to the history and culture of cannabis, to the highly technical “Genomics and Pharmacognosy,” to “Expert Seminars and Case Studies” where students identify knowledge gaps in the science and design an educational intervention.

Coop is looking forward to more sweeping changes in policy and legislation. “To me, the bottom line is that we need change at the federal level, such as the MORE Act, before we’ll see more med schools include it in their curriculum,” he said. “Once we get things such as the decriminalization of marjiuana, I predict more schools will include it. There is a want and a need for education in all aspects of marijuana.”

Until that day, those of us with diseases suspected to be sourced in ECS malfunction must wait. One day, researchers like Dr. Russo will have the resources to provide necessities like a diagnostic test for fibromyalgia, something he’s waiting on funding to get rolling on—a development that could change the lives of millions.

As Dr. Russo told us, “This failure to address ECS education appropriately is in unforgivable breach of scientific trust and a major disservice to the public health.” 

Does cannabis make you poo?

By Meg Hartley
Published on April 13, 2020 • Last updated July 28, 2020

Have you ever sat down for a nice session but after a few tokes suddenly have to get up to hit the bathroom? I noticed a connection so I asked the internet, which provided abundant anecdotal evidence, proving I wasn’t alone in my pondering. After I started peeking into what science had to say on the matter, my curiosity only increased.

I did a deep dive into studies on the subject, as well as consulted a couple experts, and it turns out the connection between smoking a bowl and going #2 is no coincidence. Between cannabis calming our nerves, its effect on the gut’s microbiome, and the endocannabinoid system being involved in the activity in this department, it looks like weed can, indeed, make us doodie.

Too stressed to go

I spoke with medical cannabis expert and integrative medicine physician Dustin Sulak, D.O. “Endocannabinoids absolutely do affect motility, both directly and indirectly. The most powerful way in which cannabis could help a person defecate is by helping them to relax and get into a more parasympathetic state,” said Sulak.

Another way to think of a parasympathetic state is “rest and digest,” with defecation being part of the digest aspect. This is opposed to the sympathetic nervous system, which prepares the body to act quickly. There is an evolutionary reason for not being able to poo while in a fight-or-flight state enacted by the sympathetic nervous system: “If we’re escaping from a bear attacking us, we don’t want to have to defecate,” said Sulak.

He continued, “Conversely, when it’s time to relax and empty our bowels, we don’t want to feel threatened. That has to happen in a place where we feel comfortable. But, unfortunately, a lot of people are taking their stressors around with them, even into the bathroom, with their phones or just in their minds, remaining stressed out, feeling threatened in some way.” 

But cannabis, and endocannabinoids that our bodies produce, can help. “Our inner pharmacy’s version of cannabis, the endocannabinoids, and herbal cannabis, have the ability to suppress this excessive sympathetic activity. So if the fight-or-flight response is turned on too strongly, the right dose of cannabis can suppress it. This is obvious to people who use cannabis to help them relax and find relief from anxiety. The same mechanism would allow someone to shift into rest and digest, or parasympathetic dominance, and get the job done,” he said.

The Goldilocks zone

Endocannabinoids help keep the body in balance. One of those endocannabinoids, 2-AG, is an important physiologic regulator of gastrointestinal motility—i.e., pooping—and behaves like THC. “That’s one of our body’s signaling molecules that mimics THC, or THC mimics it. 2-AG is active in regulating the sympathetic and parasympathetic influence on the gut, and in the gut itself, where it suppresses excessive activity and brings the system into balance,” said Sulak. 

So in this way, cannabis could lead to a deuce by helping keep our nervous system and our gut in the “Goldilocks zone,” or the healthy range of activity.

Cannabis can also help someone get into the needed relaxed state by relieving pain. “When people are in chronic pain, even if it has nothing to do with the rectum—if it’s their foot or their leg or their head—that still creates a kind of threatening internal state. So it can be hard when in pain or feeling anxiety to relax enough to use the bathroom. Cannabis can be very useful for that,” said Sulak.

Dr. Sulak concluded with a word of caution: “For people with constipation not related to stress or pain, cannabis could potentially worsen the issue because it can suppress muscular contractions and secretion in the colon, the same ways in which it can help with diarrhea.”

More on cannabis and BMs

The endocannabinoid system (ECS) is also integral to the brain-gut axis, which modulates activity in this realm, including helping people poop. This 2016 study says that the ECS is “An important physiologic regulator of gastrointestinal motility,” meaning bowel movements.

Foremost psychopharmacology researcher Ethan Russo, M.D., also told us, “A lot of people note easier bowel movements after cannabis. This can alleviate both constipation or diarrhea associated with irritable bowel syndrome, a presumptive clinical endocannabinoid deficiency syndrome. THC also positively alters the gut microbiome and this effect should not be discredited.”

Additionally, a 2019 study found that cannabis consumption was associated with a 30% decrease in constipation. 

So, if you’ve ever wondered if there’s a connection between enjoying herb and needing to head for a #2—‘tis not in your imagination. Next time you need a little help, maybe try sparking up a doobie so you can dookie. 

Stay regular, friends.

Are we turning CBD into snake oil?

Meg Hartley

Published on August 1, 2019 • Last updated July 28, 2020

B12 deficiency nearly caused my death in 2015; did you have any idea that’s even something to worry about? Like me four years ago, you probably didn’t—and it’s largely due to a fellow known as “Dr. Feelgood.” This charlatan popularized B12 in the 1960s, administering it in a decidedly not-medical fashion, giving it to those without a deficiency because of the energy boost it offered, often combining it with intoxicants and other substances.

CBD has become a trend before scientists have even fully figured out how it works with our bodies.

This eventually led to it culturally being thought of as a “snake oil,” or basically worthless and unnecessary medicine—which had unfortunate and severe effects on how it’s now treated by the medical community at large. And this happened despite the 1934 Nobel Prize in Medicine being awarded to the man who stopped the formerly frequent deaths of the deficiency, then known as pernicious anemia.

In our culture, we like things simple. Even though B12 deficiency was an extremely common cause of death a mere century ago, doctors are now hardly taught about it; they’re not even taught to screen for it correctly, and often not testing even serum levels unless they see anemia, a late-stage symptom that doesn’t happen in everyone.

Let’s talk about what this means for cannabis. CBD, or cannabidiol, is trendy. So trendy, it’s showing up at dinner partieshigh-end juice bars, even Carl’s Jr.—and it’s at risk of falling into the same fate as B12.

The Big Deal

Within each and every one of us is a system of receptors that interact with cannabis, allowing us to experience its pleasurable and therapeutic effects. It’s called the endocannabinoid system, or ECS for short. Yet most doctors haven’t been taught about the endocannabinoid system at all, ever.

Despite the willful ignorance of the medical field in this regard, experts have been studying the ECS for nearly 30 years, understanding that it acts as a balancing force in all of the other bodily systems. Put simply, the ECS is an important biological network that medical professionals have yet to fully understand.

What if the result of CBD-mania could be that the medical prowess of the ECS, and the cannabinoids that interact with it, aren’t ever taken seriously?

Because it interacts with the other bodily systems to help achieve homeostasis (or balance), when the ECS isn’t functioning properly, it may affect the body in a multitude of ways, and often in a severe manner.

This is also why cannabinoids like CBD are such medical powerhouses—because they can help the ECS function when it can’t produce enough endocannabinoids (the cannabinoid-like compounds our body naturally produces) to run properly. Different cannabinoids in cannabis work with the ECS in a multitude of ways, empowering it to aid the cacophony of symptoms that can be caused by ECS imbalance.

The “Dr. Feelgoods” of CBD

By way of its effects on the ECS, CBD is a serious subject, and the way it’s regarded has very real implications. All of us need to start treating it appropriately, but especially medical professionals and those profiting from CBD.Since the passing of the Farm Bill, CBD has completed saturated our culture—and the pyramid schemes, ice cream flavors, and sketchy (untested!) products from random websites are affecting the way CBD is viewed.

The stigma around cannabis has already led to a major bodily system being largely ignored by the people who are responsible for protecting our health. CBD has become a trend before scientists have even fully figured out how it works with our bodies.

In our culture, if people think something is irrelevant, history has shown that it will be treated as so, regardless of overwhelming facts to the contrary. Even though the ECS was discovered in the early 90’s, its relation to a stigmatized plant means that it’s been ignored. Our nation has been swept up in the miraculous power of a cannabinoid without even really knowing what it is, or that there’s many more of them waiting to be studied and benefited from.

CBD has already proven to be an important medicine for serious conditions. But if we keep treating CBD with all the relevance of a fidget spinner, it’s hard to imagine that the dinosaur pace of cannabis science will hasten. This means that the lack of an even rudimentary test for endocannabinoid deficiency or dysfunction will persist, and people will continue to be diagnosed with “incurable” and misunderstood diseases—and still suffer the symptoms.

The ECS and Endocannabinoids: Are We Made for Cannabis? 

Originally published in the now-defunct but beloved Civilized, in early 2019.

Let me ask you a cringe-worthy question, “Have you heard of CBD?”

Of course you have. (It’s already got its own pyramid schemes, for crying out loud.) You’ve probably also heard of THC, three letters cherished throughout the world for the euphoric effects it brings. And you might even know that they are both cannabinoids, active compounds of the cannabis plant, and that there are many many others. 

But did you know that your body makes its own versions of cannabinoids?

True story. They’re called endocannabinoids, and they’ve got a big responsibility. We’ll share how to keep them at their best, but first let’s explore the system that they’re a part of.

The Endocannabinoid System is what Makes Cannabis so Powerful

There’s a network of receptors located throughout your body called the endocannabinoid system (ECS), and it’s how the cannabinoids in cannabis work their magic. This crucial system was discovered back in 1988; but, in large part due to the illegality and stigma surrounding the plant that it interacts with, it’s tragically understudied and hardly covered in medical school. 

The cannabinoids in cannabis interact with receptors all over the ECS, causing various effects in the system they are located within – and they’re located everywhere. 

We spoke with self-described ‘cannabinoidologist’ Tamás Bíró MD, PhD, DSc, Professor, Director General of the Hungarian Center of Excellence for Molecular Medicine and Director of Applied Research, Phytecs, Inc. who explained, “The ECS is a central player in maintaining and controlling the homeostasis of the human body. As of today, we know that the ECS is functionally active in all organs of the body and controls most of its physiological processes.” 

You read that right, the ECS is active in all organs of the body and controls most of the processes that keep us alive and functioning. It’s global presence in the body is how cannabinoids, like the now-ubiquitous CBD, are able to help treat all kinds of ailments.

But We Also Make Endocannabinoids

It might seem like our bodies were made for weed, but it’s not quite a stoner fantasy of that level. (Still pretty cool though.) Our bodies create molecules called endocannabinoids, the prefix endo– being short for endogenous, that also interact with this system, helping it to promote healthy function throughout the body. 

Though several more have been discovered, two main endocannabinoids are presently being studied. Anandamide was the first to be discovered, named for the Sanskrit word for ‘bliss’. The second main endocannabinoid is 2-arachidonoylglycerol (2-AG); whose moniker may not have a charming origin, but has been scientifically linked to feelings of bliss as well; 2-AG’s plasma levels have been found to be elevated after orgasm in both men and women. 

A more well-known byproduct of elevated endocannabinoid levels is the phenomenon of peaceful euphoria often experienced by athletes during intense exercise. As explained to us by Nicholas V. DiPatrizio, Ph.D., University of California, Riverside School of Medicine, “Levels of endocannabinoids are elevated in blood during running, which may contribute – at least in part – to ‘runner’s high’.”

When Endocannabinoids Can’t do Their Thing, Trouble Arises

The ECS helps promote health throughout the body by encouraging balance in its various functions. Much like we prefer not to be too hot or too cold, the systems in our bodies have “Goldilocks zones” that they perform best at. The endocannabinoids and receptors that make up the ECS help adjust functions so they are just right.

And when this system isn’t able to its job, health can go very awry. As Dr. Bíró puts it, “For the body to stay healthy, it requires a healthy ECS. However, like all equations, ‘healthy ECS = healthy body’ is also valid from the other direction.” He continues talking about the impacts of an unhealthy ECS, “As a consequence; the ECS will be unable to regulate homeostasis, which in turn impairs key physiological functions.” 

So, if you want to get a healthy body – you need to get a healthy ECS.

What Can I do to Improve my ECS Health?

1) Maintain Balance: It makes sense that practicing harmony in one’s lifestyle is the way to keep this system of balance in order. Dr. Bíró continues, “The most important thing you can do to keep the ECS healthy is to avoid the extremes. To name a few examples: avoid extreme and chronic stress, avoid being overweight, control alcohol consumption, and try to curtail dependencies, in general.”

2) …Even When it Comes to Cannabis: Dr. Bíró also notes that while overconsumption of non-endogenous cannabinoids (like those in cannabis) can lead to ECS dysfunction, conversely they can also be used to treat the symptoms that it causes. “One can use carefully selected and properly dosed cannabinoids to substitute for endocannabinoids if their production levels are low.” He also noted that some ratios were more beneficial than others, drawing importance to the use of multiple cannabinoids (not just, say, CBD) as well as why there’s discrepancy among pertinent studies.  

3)  Eat Right and Get Moving: We also spoke with Ethan Russo, MD. of the International Cannabis and Cannabinoids Institute, who shared, “Lifestyle approaches can be integral to fostering a healthy ECS. These include regular aerobic exercise and following an anti-inflammatory diet; such as a Mediterranean diet, with emphasis on olive oil, fish, seeds and nuts,” also suggesting pro- and prebiotics. He added, “Sedentary behavior is harmful to the ECS, as are foods that are pro-inflammatory, such as fried foods with trans-fats, or too many calories in general.”

To Feel Good, Get Right with Your ECS

The ECS not only makes cannabis so powerful, it’s the system responsible for keeping all the other systems in line. It’s a big deal, even if your doctor isn’t privy to it. 

Dr. Russo continues, “Boosting endocannabinoid tone offers many advantages, by balancing neurotransmitter function in the brain, regulating digestion, and positively influencing overall homeostasis in virtually every physiological system of the body.” He also noted how personal advocacy is important, “People should be encouraged to educate themselves and their doctors on the role of the endocannabinoid system in overall health and its maintenance.”

So if you’re feeling off, consider how balanced your approaches to activities and wellness are; maybe your ECS needs a little TLC. And while you’re restoring balance, a bit of THC, CBD, CBN, or any of the many other cannabinoids out there – just might ease the journey.