The Tiny Book of Cannabis


The query of regardless of whether or not cannabis can be a valuable tool for discomfort management is not up for debate: thousands of years of its use as an analgesic combined with hundreds of patient self-report surveys generated more than the final various decades inform us that men and women who use cannabis knowledge relief from discomfort, regardless of whether neuropathic or nociceptive. Even though historical use has pointed us to cannabis for discomfort relief, scientists are nevertheless functioning to recognize precisely how cannabis performs in this context so that it can be utilised extra efficiently. Fortunately, a higher acceptance of the plant as an analgesic in current years has led to much better high quality study on the topic of precisely what cannabis, and extra especially cannabinoids, do in the physique to support quell discomfort.

In a 2017 clinical assessment published in the journal Cannabis and Cannabinoid Investigation, the authors confirm that several randomized, controlled clinical trials show that cannabis can be an “effective pharmacotherapy for discomfort.”1In examining the current literature, it indicated that, when compared to a placebo, “cannabinoids had been connected with a higher reduction in discomfort and higher typical reduction in numerical discomfort ratings.”

“There is converging proof to assistance the notion that cannabis can make acute discomfort-inhibitory effects amongst folks with chronic discomfort,” it reads.two

The body’s endocannabinoid program plays an vital function in the management of discomfort and inflammation. Even though the body’s all-natural endocannabinoids are created on an on-demand basis in injured tissues to support minimize discomfort by activating our cannabinoid receptors, cannabinoids like THC and CBD can have a equivalent impact on our discomfort tolerance. In their literature assessment described earlier in this chapter,threeRusso and Hohmann create that THC is a partial agonist of each CB1 and CB2 receptors, which means it acts as an “activator,” initiating a physical response. They create that “pathological discomfort states have been postulated to arise, at least in portion, from a dysregulation of the endocannabinoid program,”fourwhich means that an unbalanced ECS could possibly be at least partly to blame for ongoing discomfort. From their examination of extra than two hundred pieces of literature, they concluded that standard science and clinical trials assistance the notion that cannabinoid therapy is a sensible way to treat chronic discomfort.

Even though we know that cannabinoids like THC and CBD can support us deal with distinctive forms of discomfort, scientists have (largely) concluded that what tends to make cannabinoids efficient is not necessarily how they interact with the discomfort itself, but how they interact with our perception of the discomfort we’re experiencing. Couple of researchers with a concentrate on cannabinoid therapy have a much better grasp of cannabis and its effects on discomfort than Dr. Mark Ware, an associate professor in family members medicine and anesthesia at McGill University in Montreal, and the director of clinical study at the Alan Edwards Discomfort Management Unit at the McGill University Well being Centre.

“Pain is a fascinating symptom,” he says when I ask about how cannabis modifications our perception of discomfort. “If you consider about a discomfort you may well have knowledgeable, you will know nicely that there’s a sensory element to it, a feeling of shock from the intensity of the pain—but there’s also an emotional aspect to discomfort,” he says, describing the subsequent “I’m such an idiot” moment immediately after you have reduce oneself even though cooking. “As simplistic as it sounds, it is representative of the astounding network in the brain that in fact processes discomfort.” Ware says discomfort signals are sent up the spinal cord and then relayed to a portion of the brain known as the thalamus. From there, the thalamus sends the signal all through the brain to regions which includes the sensory cortex, exactly where you really feel not only the feeling of discomfort, but also the spot in your physique exactly where the discomfort resides.

“It also sends out messages to the emotional centers of discomfort, and that begins to involve items like memory—say you have [injured yourself in this way] before—now you are even extra of an idiot,” he says, describing the way damaging emotional responses like aggravation, worry, and self-deprecation can impact the way we perceive discomfort. These reactions, he says, are all taking place inside split seconds of our becoming exposed to discomfort. “It may well not be as apparent in an acute discomfort setting, when it is apparent what you have accomplished to lead to the discomfort, but in somebody who is living with chronic discomfort on a each day basis, these emotional and sensory-affective elements of discomfort are pretty, pretty vital.”

Ware says a cannabinoid-primarily based drug will impact several centers of the brain, which includes memory and cognition, as nicely as sensation and so on. When he speaks to individuals who use cannabis to treat their discomfort, they’ll normally say that even though they can at times nevertheless really feel that it is there, it does not come attached with the unpleasant feelings or damaging feelings that it was previously connected with.

“I’ve heard this as well a lot of instances for it just to be random: men and women say that it requires them away from the pain—it does not take the discomfort away from them.” Explaining additional, Ware describes brain-imaging research of men and women suffering from experimental discomfort, or discomfort induced in a laboratory setting for the purposes of a clinical study, normally utilised in drug improvement. When subjects had been provided THC, researchers had been capable to show that the portion of the brain accountable for “coding the pain” as an unpleasant feeling was the amygdala. “THC binds to the receptors in the amygdala, and we consider that is the cause why men and women report this dissociation of the discomfort as becoming painful but not unpleasant.”

Excerpted with permission from The Tiny Book of Cannabis: How Marijuana Can Boost Your Life by Amanda Siebert, foreword by Dr. Rav Ivker (Greystone Books, Oct 2018).


  1. Kevin P. Hill et al., “Cannabis and Discomfort: A Clinical Critique,” Cannabis and Cannabinoid Investigation two, no. 1 (2017): 96-104,
  2. Hill et al., “Cannabis and Discomfort.”
  3. Ethan B. Russo and Andrea G. Hohmann, “Role of Cannabinoids in Discomfort Management,” in Extensive Therapy of Chronic Discomfort by Health-related, Interventional, and Integrative Approaches, eds. Timothy R. Deer et al. (New York: Springer, 2013), 181-98.
  4. Russo and Hohmann, “Role of Cannabinoids in Discomfort Management.”


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