Cannabidiol (CBD), a Cannabis sativa constituent, is a pharmacologically broad-spectrum drug that in recent years has drawn increasing interest as a treatment for a range of neuropsychiatric disorders. The purpose of the current review is to determine CBD’s potential as a treatment for anxiety-related disorders, by assessing evidence from preclinical, human experimental, clinical, and epidemiological studies. We found that existing preclinical evidence strongly supports CBD as a treatment for generalized anxiety disorder, panic disorder, social anxiety disorder, obsessive–compulsive disorder, and post-traumatic stress disorder when administered acutely; however, few studies have investigated chronic CBD dosing. Likewise, evidence from human studies supports an anxiolytic role of CBD, but is currently limited to acute dosing, also with few studies in clinical populations. Overall, current evidence indicates CBD has considerable potential as a treatment for multiple anxiety disorders, with need for further study of chronic and therapeutic effects in relevant clinical populations.
“By smoking weed, you suppress the REM sleep, and with that you also suppress a lot of important functions of that REM sleep. One of those functions is reliving the things you have experienced and coming to terms with them, as it were. Processing all kinds of psychological influences is something you do in REM sleep. You also anticipate the things that will happen the next day or the days after that. While you're sleeping, you already consider those and make decisions in advance."
He was using an oil from a brand called Pure Kana, and the only thing that I had known about the stuff before I tried it was that it wasn’t supposed to get you high. (In fact, I really think the main reason I willingly tried it was because I knew that my aunt – who works full time and supports three daughters – was using it. I figure if she was into it, then it must be halfway legit).
You may be familiar with a concept called the entourage effect. The entourage effect states that cannabinoids work better together than they do alone. In essence, CBD is more effective when combined with other cannabinoids like CBG, CBN, THC, and so on than it is in isolation. The terms “full-spectrum” and “whole-plant” are alluding to this concept. Biologically, a person gets high by having THC bind to CB1 receptors in the brain. CBD also binds to CB1 receptors in the brain and has been shown to actually counteract some of the effects of getting high by blocking the activation of THC in CB1 receptors. CBD changes the shape of the receptor so that there is less room for THC to bind to. CBD has even been shown to decrease the heightened heart rate that you feel from getting high. Therefore CBD can even have an impact on the anxiety that comes from the psychoactive effects of THC.
Basically, CBD is a 100% natural chemical that’s found in the marijuana plant. It is what’s referred to as a “phytocannabinoid,” which means it belongs to a class of molecules that interact with endocannabinoid receptors in the human body. These receptors belong to the body’s endocannabinoid system, or ECS, which is responsible for essentially all of our homeostatic functions.

Since then several other so-called endocannabinoids and their receptors have been discovered. Scientists have come to recognize that endocannabinoids interact with a specific neurological network—much the way that endorphins, serotonin, and dopamine do. Exercise, Mechoulam notes, has been shown to elevate endocannabinoid levels in the brain, and “this probably accounts for what jogging enthusiasts call runner’s high.” These compounds, he explains, apparently play an important role in such basic functions as memory, balance, movement, immune health, and neuroprotection.
In terms of cancer, the suggestion is to have three doses of CBD oil each day, and gradually increase the amount to 1 gram per day. The full treatment is believed to take 90 days. Please note that CBD oil is still illegal in many countries, but there is a significant amount of research being done on its medical applications, and a number of reputable sources have put out guides regarding the use of CBD oil for treatment of many diseases.
Anxiolytic effects of CBD in models of generalized anxiety have been linked to specific receptor mechanisms and brain regions. The midbrain dorsal periaqueductal gray (DPAG) is integral to anxiety, orchestrating autonomic and behavioral responses to threat [91], and DPAG stimulation in humans produces feelings of intense distress and dread [92]. Microinjection of CBD into the DPAG produced anxiolytic effects in the EPM, VGC, and ETM that were partially mediated by activation of 5-HT1ARs but not by CB1Rs [65, 68]. The bed nucleus of the stria terminalis (BNST) serves as a principal output structure of the amygdaloid complex to coordinate sustained fear responses, relevant to anxiety [93]. Anxiolytic effects of CBD in the EPM and VCT occurred upon microinjection into the BNST, where they depended on 5-HT1AR activation [79], and also upon microinjection into the central nucleus of the amygdala [78]. In the prelimbic cortex, which drives expression of fear responses via connections with the amygdala [94], CBD had more complex effects: in unstressed rats, CBD was anxiogenic in the EPM, partially via 5-HT1AR receptor activation; however, following acute restraint stress, CBD was anxiolytic [87]. Finally, the anxiolytic effects of systemic CBD partially depended on GABAA receptor activation in the EPM model but not in the VCT model [61, 62].

“One of the intricacies of CBD is that effective dosing can be much different between two people,” Lopez says. “There’s no way to know what dose is right for you until you try it, but in general, if you’re someone who is sensitive to most medications, start at the lower end of typical doses.” By that he means a daily dose of 5 to 15 milligrams—a few drops of a tincture, depending on a product’s strength. “If you’re feeling no effects, adverse or beneficial, after three to five days, add another serving of the same amount.”
"A CBD company may create a CBD oil, test it, and use the test results to create their label," Bonn-Miller says. "The problem is if they never test their product again, or they test it once a year, you have no idea whether each batch is the same as the first one that they used to create the label. The vast majority of companies are not using manufacturing standards that assure product consistency over time. Companies should be testing every batch they make and tossing batches that don't fall within the specs of their label."
The eCB system regulates diverse physiological functions, including caloric energy balance and immune function [28]. The eCB system is also integral to regulation of emotional behavior, being essential to forms of synaptic plasticity that determine learning and response to emotionally salient, particularly highly aversive events [29, 30]. Activation of CB1Rs produces anxiolytic effects in various models of unconditioned fear, relevant to multiple anxiety disorder symptom domains (reviewed in [30–33]). Regarding conditioned fear, the effect of CB1R activation is complex: CB1R activation may enhance or reduce fear expression, depending on brain locus and the eCB ligand [34]; however, CB1R activation potently enhances fear extinction [35], and can prevent fear reconsolidation. Genetic manipulations that impede CB1R activation are anxiogenic [35], and individuals with eCB system gene polymorphisms that reduce eCB tone—for example, FAAH gene polymorphisms—exhibit physiological, psychological, and neuroimaging features consistent with impaired fear regulation [36]. Reduction of AEA–CB1R signaling in the amygdala mediates the anxiogenic effects of corticotropin-releasing hormone [37], and CB1R activation is essential to negative feedback of the neuroendocrine stress response, and protects against the adverse effects of chronic stress [38, 39]. Finally, chronic stress impairs eCB signaling in the hippocampus and amygdala, leading to anxiety [40, 41], and people with PTSD show elevated CB1R availability and reduced peripheral AEA, suggestive of reduced eCB tone [42].
5-HT1A agonist: 5-HT1A is a subtype of the serotonin receptor, which is important because anxiety and depression can sometimes be treated with medications that target the serotonin system. This is why drug companies developed selective serotonin reuptake inhibitors (SSRIs) like Prozac and Zoloft. SSRIs work by blocking reabsorption of serotonin in the brain, which increases availability of serotonin in the synaptic space. This helps brain cells transmit more serotonin signals, which can reduce anxiety and boost mood in certain cases (although the full biological basis for this is more complicated and not fully understood).
Taking CBD oil is like drinking milk and calling it calcium, Hernandez said: There’s some in there, but at very low concentrations dispersed among a host of other ingredients. And what those other ingredients are is anyone’s guess. “The thing to know is that CBD hasn’t gone through the safety controls, the efficacy controls that we usually use, the clinical trials,” Hernandez said. “The jury is still out regarding how safe this drug is.”

“The week before we tried it, we had 64 seizures,” Penny told me, noting those were only the visible seizures, while unseen neurological events would likely push the number into the hundreds. “We administered hemp oil, and the next week we logged in 28 seizures. ... The very next week, her second week on the hemp oil, we logged none.” Penny paused and repeated herself, as though she could still only half believe the miracle: “None.”

Many who take prescription medication for insomnia or other sleep-related issues complain of feeling lethargic, nauseated, distracted, and unable to focus - and that’s just some of the side-effects. Many of those who take prescription medication are also unable to operate vehicles or machinery, which can mean the loss of mobility and even the loss of income. But how do you find something that helps you maintain a decent sleep without all the horrible side-effects of prescription medication?
According to the National Eczema Association, “Cannabinoids represent an exciting prospect for the future of AD therapy. With measurable anti-itch, anti-pain, anti-microbial and anti-inflammatory properties, the effect of cannabinoids in patients with AD has already begun to be demonstrated.” (10) Cannabinoids can be found in both cannabis oil and CBD oil.
Since THC and Cannabis oils contain a higher percentage of THC, it still causes users euphoric and psychoactive reactions, similar to the feelings when people take marijuana recreationally. Besides the high that you experience, the oil delivers a long list of short-term effects, which are similarly present when you smoke or ingest marijuana. Each person’s reaction may vary in the symptoms it causes and their degree.

CBD is a safe, long-term aid which is why it has gained such momentum and why our customers are turning to it for relief. CBD, scientifically known as cannabidiol, is a non-psychoactive, organic compound found in the hemp plant. When it interacts with the body’s endocannabinoid system, CBD provides powerful health benefits without the side effects of conventional drugs.
Relevant studies in animal models are summarized in chronological order in Table ​Table1.1. CBD has been studied in a wide range of animal models of general anxiety, including the elevated plus maze (EPM), the Vogel-conflict test (VCT), and the elevated T maze (ETM). See Table ​Table11 for the anxiolytic effect specific to each paradigm. Initial studies of CBD in these models showed conflicting results: high (100 mg/kg) doses were ineffective, while low (10 mg/kg) doses were anxiolytic [59, 60]. When tested over a wide range of doses in further studies, the anxiolytic effects of CBD presented a bell-shaped dose–response curve, with anxiolytic effects observed at moderate but not higher doses [61, 90]. All further studies of acute systemic CBD without prior stress showed anxiolytic effects or no effect [62, 65], the latter study involving intracerebroventricular rather than the intraperitoneal route. No anxiogenic effects of acute systemic CBD dosing in models of general anxiety have yet been reported. As yet, few studies have examined chronic dosing effects of CBD in models of generalized anxiety. Campos et al. [66] showed that in rat, CBD treatment for 21 days attenuated inhibitory avoidance acquisition [83]. Long et al. [69] showed that, in mouse, CBD produced moderate anxiolytic effects in some paradigms, with no effects in others.

I couldn’t really tell when the effect of the CBD tapered off, but I had a relatively nice, mellow afternoon.  I noticed slight changes in perception after taking the BioCBD+ to the extent that I knew the formulation had “kicked-in.”  Whether these perceptual changes were a direct result of cannabidiol, the other herbal additives in the product, or a combination of both – isn’t clear.


How do you take it? CBD products comes in a variety of forms, including tinctures, gel caps, and topical applications. One athlete-focused company, Floyd’s of Leadville, offers a protein recovery powder and a carb drink that contain CBD. (That’s Floyd as in Floyd Landis, the former professional cyclist who was stripped of his 2006 Tour de France title for failing a drug test and who helped to expose Lance Armstrong’s doping.) Another athlete-focused company, PurePower Botanicals, offers capsules that combine CBD with herbs and other purported medicinals, such as turmeric. PurePower says that the non-hemp-derived ingredients increase the effectiveness of the products’ CBD.
One area where CBD is clearly helpful: the treatment of seizures associated with one form of epilepsy. A 2017 New England Journal of Medicine study found ingesting oral CBD dramatically cut down most patients’ seizure frequency—a finding that prompted the FDA to support the approval of one CBD drug for use in the treatment of some epilepsy patients.
Chronic administration: There’s minor evidence suggesting that chronic administration of CBD may be deleterious to neurophysiological health. This evidence didn’t come from a human study, but discovered that chronic CBD administration (10 mg/kg, intraperitoneal injections) for 14 days reduced BDNF expression in various regions of the brain.  It also altered protein expression of TrkB and phospho-ERK1/2 – indicating (potentially) unwanted epigenetic changes.
Researchers utilized SPECT neuroimaging with an ECD tracer to assess regional cerebral blood flow of the participants ~90 minutes after CBD or placebo administration.  They also administered the VAMS (Visual Analogue Mood Scale) to determine subjective mood of participants throughout the study.  After each participant had been examined twice (once with the placebo, once with the CBD) – data was compared.

Those suffering from anxiety often undergo therapy to treat the condition as well. Cognitive-behavioral therapy gives people different ways of managing and coping with anxiety and teaches them the skills to help them identify and handle the root causes of their stress. Therapy combined with medication has proven to be a very effective way of treating anxiety disorders.
The lab also has studied how the chemicals in cannabis, as well as cannabinoids like the anandamide produced by our bodies, protect our brains against various types of insults, such as physical and emotional trauma. “Our brain needs to remember things, of course,” says Guzmán, “but it also needs to forget things—horrific things, unnecessary things. It’s much like the memory in your computer—you have to forget what is not necessary, just like you need to periodically delete old files. And you have to forget what is not good for your mental health—a war, a trauma, an aversive memory of some kind. The cannabinoid system is crucial in helping us push bad memories away.”
A syrup is also absorbed sublingually, and I took Shunney's advice of swishing CBD Living's Sleep Aid ($26; cbdlivingwater.com) around my mouth for a minute before swallowing to promote absorption. One tablespoon contains 15mg of CBD plus 2mg of melatonin, and the cherry flavor tasted like Nyquil, which I kind of liked. Again, I could feel the effects of the CBD working through my system after about 40 minutes or so, but I didn't think I actually fell completely asleep any early than the other nights. (Related: Will Melatonin Really Help You Sleep Better?) 
Very detailed and well researched article, thank you. I would like to highlight the possibility of using CBD suppositories as well, since the bioavailability of rectal administration can reportedly reach up to 70%, compared to 6% via oral ingestion or 30% when vaporized. I have even heard of people who produce their own suppositories or simply inject a mixture of CBD and organic edible oils with a syringe. Might not me the most pleasant option, but obviously very efficient.
The human body also produces cannabinoids, known as endocannabinoids, in a bodily system known as the endocannabinoid system (or ECS). The ECS promotes homeostasis by regulating a wide range of functions, including motor skills, mood, appetite, and sleep. As we age, our ECS produces fewer endocannabinoids; they may also decrease due to physical injury or disease. Replenishing depleted endocannabinoids with phytocannabinoids like CBD can help restore balance to the body.
THC (Tetrahydrocannabinol) Cannabis oil and Cannabidiol (also called CBD) have similarities but some important differences for users. Both cannabinoids, chemical compounds that can be found in all cannabis plants, including hemp and marijuana. Cannabinoids are the substances secreted by the flowers of the cannabis plant and contain natural medicinal properties, offering relief from conditions including anxiety, pain, nausea, and inflammation. There are plant-based cannabinoids and also phytocannabinoids, both with a variety of health benefits.
I have sporadic back spasms for year I see a chiropractor monthly for maintenance (it help) and deal with daily Knee & hip joint pain due to my job (heavy mechanic/steel work with lots of walking). after reading all the great reviews on CBD oil I want to get off the daily ibuprofen regiment and try CBD oil. I would like to try it as a gel cap but would like some advise on dosage size. I also want to know how often I should take the CBD treatments. any and all advise is appreciated

Many who take prescription medication for insomnia or other sleep-related issues complain of feeling lethargic, nauseated, distracted, and unable to focus - and that’s just some of the side-effects. Many of those who take prescription medication are also unable to operate vehicles or machinery, which can mean the loss of mobility and even the loss of income. But how do you find something that helps you maintain a decent sleep without all the horrible side-effects of prescription medication?
May this letter find you and your loved ones happy and healthy for without you I would not be in such an improved state of physical health? It is not often I get to put pencil to paper for not only could I not concentrate due to opiate pharmaceuticals (couldn't express oneself due to lack of cognitive thinking) but the pain, inability to get comfortable due to lymphodemia and anxiety from stress (from lack of cash flow for food, bills, medicines plus the high expense of bandages & ointments) have prevented me from making contact but ....still after this prolonged period of time, I feel it necessary to write personally to mention just how dramatically you changed the world my two children and I live in. My sister Casey Lee Smith, arrived 6 months ago from the USA to run my household and it is through "Phoenix Tears" website she was able to make contact with you and learn all about the many wondrous benefits of medicinal Cannabis oil. When the treatment arrived, I was overwhelmed for I am a single Mother and your generosity brought tears to my eyes (even now it is hard to fight tears as I write) It has been rough to say the least. Feeling helpless, overly tired and frustrated by the lack of qualified physicians in my local town. I became depressed. My ex-husband felt he should prepare the kids for my untimely death. The location of my cancer spread throughout my left quadrant into my lymph and into the brain. I became bed ridden and lost hope. I will lose my house shortly but now i know it won't be my life. So, "THANK YOU" for the gracious gift and know you are loved! Sending love to you forever and always.
People with specific phobias experinence strong, irrational fears of certain objects, places, or situations (fear of snakes, flying, big spaces, small spaces, etc.). These phobias can disrupt daily routines and limit a persons abilities to function properly. Some phobias develop in childhood, while others in adolescence or early adulthood. 19 million, 8.7% of the US population suffer from specific phobias. Women are twice as likely to be affected as men.

"It's important to know that the research in this area is in its infancy, partly because we haven't really understood much about CBD until relatively recently," said Marcel Bonn-Miller, an adjunct assistant professor at the University of Pennsylvania Perelman School of Medicine. He pointed out that the classification of marijuana as a Schedule 1 drug by the DEA makes it difficult to get material to use in laboratory studies. Schedule 1 drugs have a high potential for abuse, according to the DEA, and are illegal under federal law.

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