Last year, the National Academies of Sciences, Engineering and Medicine released a nearly 500-page report on the health effects of cannabis and cannabinoids. A committee of 16 experts from a variety of scientific and medical fields analyzed the available evidence — more than 10,000 scientific abstracts in all. Because so few studies examine the effects of CBD on its own, the panel did not issue any findings about CBD specifically, but it did reach some conclusions about cannabis and cannabinoids more generally. The researchers determined that there is “conclusive or substantial evidence” supporting the use of cannabis or cannabinoids for chronic pain in adults, multiple sclerosis-related spasticity (a kind of stiffness and muscle spasms), and chemotherapy-induced nausea and vomiting. The committee also found “moderate” evidence that cannabis or cannabinoids can reduce sleep disturbances in people with obstructive sleep apnea, fibromyalgia, chronic pain and multiple sclerosis, as well as “limited” evidence that these substances can improve symptoms of Tourette’s syndrome, increase appetite and stem weight loss in people with HIV/AIDs, and improve symptoms of PTSD and anxiety.
At the federal level, CBD is classified as a Schedule 1 drug in the U.S. because it is one of the many cannabinoids present in marijuana. To be labeled a schedule 1 drug means that it has a high potential for abuse and the potential to create severe psychological or physical dependence; therefore these drugs are not allowed to be used for medical use.
That leaves those touting CBD’s effectiveness pointing primarily to research in mice and petri dishes. There, CBD (sometimes combined with small amounts of THC) has shown promise for helping pain, neurological conditions like anxiety and PTSD, and the immune system—and therefore potentially arthritis, diabetes, multiple sclerosis, cancer, and more.
I’m permanently bloated and have been for nearly a year. At best, I look slightly pregnant – at worst I look nearly full-term. As you can imagine, my self confidence and body image have plummeted, I can’t fit in any clothes and my social life is non existent. My diet was horrendous but, after working with a nutritionist for a year, it’s pretty much perfect now. I’ve had blood and stool tests and tried various ‘solutions’ and supplements as recommended by nutritionist – but to no avail. Most recently, I’ve tried kambo; three treatments in a lunar cycle. Again, no change whatsoever.
Simply place the CBD Vape Oil in the designated tank (cartridge), turn on the vaporizer, and smoke the CBD vapor. The great thing about taking CBD vaporized is that it works very fast. The bioavailability is very high, which means that a very large part of the CBD being used is absorbed by the body. The CBD gets into the bloodstream very fast through the absorption in the lungs.
At present, we have the following classification of cannabinoids: endocannabinoids (produced naturally in the body, mainly from fatty acid precursors), phytocannabinoids (compounds that have a plant origin, with the cannabis plant being the best-studied source of phytocannabinoids though not the only one), and artificial cannabinoids (created while studying THC, to garner the benefits of marijuana without the recreational component).
And then there’s cannabidiol (CBD), pictured right, which is one of at least 85 active cannabinoids identified in cannabis, but is a major part of the cannabis plant, accounting for up to 40% of the plant’s total cannabinoid extract. Due mostly to its safety and legality, CBD has long been researched for a much wider scope of medical applications than tetrahydrocannabinol (THC). We’ll get into the most relevant of those medical applications later.
CBD oil is a relatively new product to the high street health market, meaning the burning questions are coming in thick and fast. And what better way to find out all the answers than to take a trip to Celtic Wind Crops' cannabis farm in County Louth, Ireland, where they grow hemp and manufacture the 5% strength CBD oil (and powder, and capsules) that has become the first CBD product to be sold in a UK Pharmacy (LloydsPharmacy). Here's everything I learned:
CBD also blocked reconsolidation of aversive memories in rat . Briefly, fear memories, when reactivated by re-exposure (retrieval), enter into a labile state in which the memory trace may either be reconsolidated or extinguished , and this process may be pharmacologically modulated to achieve reconsolidation blockade or extinction. When administered immediately following retrieval, CBD prevented freezing to the conditioned context upon further re-exposure, and no reinstatement or spontaneous recovery was observed over 3 weeks, consistent with reconsolidation blockade rather than extinction . This effect depended on CB1R activation but not 5-HT1AR activation .
Research conducted by Vandrey and his colleagues has even shown that some CBD products contain significant levels of THC—which could get a child high and cause other unpleasant side effects. “This is an area that exists in a grey area of legality,” Vandrey says. “And because of that, anyone thinking about using cannabidiol, of any type, should proceed with caution.”
As for the very extract, its taste is a bit pungent, so if you’re a fan of characteristic flavors, this might be your personal winner. Even though it takes more time for the oil to show the full anti-anxiety potential, the effects are consistent and after a week of administering cannabidiol in this form, you can keep the anxiety at bay effectively.
CBD dosing experiments have shown that small dosages of CBD has an “Active” effect, which means that it actually helps you stay active and focused. Interestingly, large dosages have the opposite effect: a sedative effect. More research has to show what is the optimal dosage to take for the anti-anxiety and antidepressant effects to be optimal, but it’s something one can also experiment with to find the dosage that suits them best.
Following cloning of the endogenous receptor for THC, namely the CB1R, endogenous CB1R ligands, or “endocannabinoids” (eCBs) were discovered, namely anandamide (AEA) and 2-arachidonoylglycerol (reviewed in ). The CB1R is an inhibitory Gi/o protein-coupled receptor that is mainly localized to nerve terminals, and is expressed on both γ-aminobutryic acid-ergic and glutamatergic neurons. eCBs are fatty acid derivatives that are synthesized on demand in response to neuronal depolarization and Ca2+ influx, via cleavage of membrane phospholipids. The primary mechanism by which eCBs regulate synaptic function is retrograde signaling, wherein eCBs produced by depolarization of the postsynaptic neuron activate presynaptic CB1Rs, leading to inhibition of neurotransmitter release . The “eCB system” includes AEA and 2-arachidonoylglycerol; their respective degradative enzymes fatty acid amide hydroxylase (FAAH) and monoacylglycerol lipase; the CB1R and related CB2 receptor (the latter expressed mainly in the periphery); as well as several other receptors activated by eCBs, including the TRPV1 receptor, peroxisome proliferator-activated receptor-γ, and G protein-coupled 55 receptor, which functionally interact with CB1R signaling (reviewed in [21, 24]). Interactions with the TRPV1 receptor, in particular, appear to be critical in regulating the extent to which eCB release leads to inhibition or facilitation of presynaptic neurotransmitter release . The TRPV1 receptor is a postsynaptic cation channel that underlies sensation of noxious heat in the periphery, with capsacin (hot chili) as an exogenous ligand. TRPV1 receptors are also expressed in the brain, including the amygdala, periaqueductal grey, hippocampus, and other areas [26, 27].
Most people do not associate cognitive health issues like anxiety, depression, brain fog, ADD, ADHD, and autism with inflammation, but it turns out that is exactly what the research is finding. There is actually a whole field of research known as the cytokine model of cognitive function studying how inflammation messes with our brains and may cause anxiety disorders. One finding is that elevated levels of NF kappa B (NFkB), an inflammatory bad guy, is associated with anxiety while people with lower levels of NFkB often have lower rates of anxiety.
There are new CBD companies coming online every week – these span the range from truly awful to really great. So how to choose the best? The quality of the CBD oil itself is obviously the most important factor – and many companies do take the quality of their products seriously. To reward those companies, we gave more weight to the quality of the product than any other category.
Laboratory evidence indicated that cannabidiol may reduce THC clearance, increasing plasma concentrations which may raise THC availability to receptors and enhance its effect in a dose-dependent manner. In vitro, cannabidiol inhibited receptors affecting the activity of voltage-dependent sodium and potassium channels, which may affect neural activity. A small clinical trial reported that CBD partially inhibited the CYP2C-catalyzed hydroxylation of THC to 11-OH-THC.