“Hemp is of high nutritional quality because it contains high amounts of unsaturated fatty acids… Linoleic acid and alpha-linolenic acid are the only two fatty acids that must be ingested and are considered essential to human health … In contrast to shorter-chain and more saturated fatty acids, these essential fatty acids do not serve as energy sources, but as raw materials for cell structure and as precursors for biosynthesis for many of the body’s regulatory biochemicals…”  

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In Canada, the methodology used for analyses and sample collection for THC analysis of hemp plantings is standardized (at the Health Canada/Therapeutics Program/Hemp web site at www.hc-sc.gc.ca/hpb-dgps/therapeut/htmleng/hemp.html, see “Industrial Hemp Technical Manual” for procedures on sampling plant materials and chemical procedures for determining THC levels). The regulations require that one of the dozen independent laboratories licensed for the purpose conduct the analyses and report the results to Health Canada. Sample collection is also normally carried out by an independent authorized firm. The Canadian system of monitoring THC content has rigidly limited hemp cultivation to cultivars that consistently develop THC levels below 0.3%.
Users have reported toxic symptoms, extreme reactions and serious psychological problems from using synthetic cannabis. These include: high blood, pressure, abdominal pain, nausea and vomiting, chest pain, heart palpitations, severe anxiety and paranoia, fear of dying, hallucinations, tremors and seizures, violent behaviour, and suicidal thoughts. These toxic symptoms have lasting several days and others have experienced long term mental health issues. Tolerance can develop quickly which means you will need more to get the same effect.
In the EU and Canada, hemp has often been grown as a dual-purpose crop, i.e. for both fiber and oilseed. In France, dual purpose hemp is typically harvested twice—initially the upper seed-bearing part of the stems is cut and threshed with a combine, and subsequently the remaining stems are harvested. Growing hemp to the stage that mature seeds are present compromises the quality of the fiber, because of lignification. As well, the hurds become more difficult to separate. The lower quality fiber, however, is quite utilizable for pulp and non-woven usages.
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

The high absorbency of hemp hurds has led to their occasional use as an absorbent for oil and waste spill cleanup. Hemp as an industrial absorbent has generated some interest in Alberta, for use in land reclamation in the oil and gas industry. Because hemp hurds are a costly product, it is likely that animal bedding will remain the most important application.

Cannabinoids are a class of compounds that interact with receptors throughout your body. CBD is just one of dozens of cannabinoids found in cannabis, including tetrahydrocannabinol (THC), which is the one responsible for marijuana’s famous high. Medical cannabis is technically any cannabis product used for medicinal purposes, and these can contain THC or CBD or both, said Nick Jikomes, a neuroscientist at Leafly, a website that provides information about legal cannabis. “A common mistake people make is to think that CBD is ‘the medical cannabinoid’ and THC is ‘the recreational cannabinoid.’” That’s inaccurate, he said, because THC is a potent anti-inflammatory and can be helpful for pain.
The earliest recorded uses date from the 3rd millennium BC.[32] Since the early 20th century, cannabis has been subject to legal restrictions. The possession, use, and sale of cannabis is illegal in most countries of the world.[33][34] Medical cannabis refers to the physician-recommended use of cannabis, which takes place in Canada, Belgium, Australia, the Netherlands, Germany, Spain, and 31 U.S. states.[35] In September 2018 cannabis was legalized in South Africa[36] while Canada legalized recreational use of cannabis in October 2018.[37]
For many, the medical and therapeutic potential of cannabis is what makes legalizing the marijuana plant such an important political and social task. Federal prohibition has established barriers to comprehensive cannabis research in the United States. However, researchers in other countries continue to make significant contributions to our knowledge of the cannabis plant and how it affects the human body.
Environmental sex determination is known to occur in a variety of species.[38] Many researchers have suggested that sex in Cannabis is determined or strongly influenced by environmental factors.[26] Ainsworth reviews that treatment with auxin and ethylene have feminizing effects, and that treatment with cytokinins and gibberellins have masculinizing effects.[14] It has been reported that sex can be reversed in Cannabis using chemical treatment.[39] A PCR-based method for the detection of female-associated DNA polymorphisms by genotyping has been developed.[40]

Some of the research focuses that were explored in 2018 were: comparison of various agronomic factors on industrial hemp (planting dates, tillage regimens, range of soil fertility, etc.); hemp variety comparison for suitability to PA growing conditions; study of the effectiveness of potential herbicide products; comparison of hemp’s capability for weed suppression to other crops; surveying hemp crops for presence of arthropod and disease pests; evaluation of hemp’s performance for phytoremediation and land reclamation; study of hemp seed oil processing and marketability; development of industrial hemp products (using grain, stalks and flowers); genetic selection for desired hemp variety characteristics; and evaluations of hemp as an animal feed ingredient (cattle).  

Hemp paper are paper varieties consisting exclusively or to a large extent from pulp obtained from fibers of industrial hemp. The products are mainly specialty papers such as cigarette paper[38], banknotes and technical filter papers[39] . Compared to wood pulp, hemp pulp offers a four to five times longer fibre, a significantly lower lignin fraction as well as a higher tear resistance and tensile strength. However, production costs are about four times higher than for paper from wood[40], so hemp paper could not be used for mass applications as printing, writing and packaging paper.
Not until the end of the 20th century was the specific mechanism of action of THC at the neuronal level studied.[citation needed] Researchers have subsequently confirmed that THC exerts its most prominent effects via its actions on two types of cannabinoid receptors, the CB1 receptor and the CB2 receptor, both of which are G protein-coupled receptors.[133] The CB1 receptor is found primarily in the brain as well as in some peripheral tissues, and the CB2 receptor is found primarily in peripheral tissues, but is also expressed in neuroglial cells.[134] THC appears to alter mood and cognition through its agonist actions on the CB1 receptors, which inhibit a secondary messenger system (adenylate cyclase) in a dose-dependent manner. These actions can be blocked by the selective CB1 receptor antagonist rimonabant (SR141716), which has been shown in clinical trials to be an effective treatment for smoking cessation, weight loss, and as a means of controlling or reducing metabolic syndrome risk factors.[135] However, due to the dysphoric effect of CB1 receptor antagonists, this drug is often discontinued due to these side effects.[136]
Another Israeli group postulated that the anti-inflammatory and immunosuppressive effects of CBD might make it a valuable adjunct in the treatment of acute graft-versus-host disease (GVHD) in patients who have undergone allogeneic hematopoietic stem cell transplantation. The authors investigated CBD 300 mg/d in addition to standard GVHD prophylaxis in 48 adult patients who had undergone transplantation predominantly for acute leukemia or myelodysplastic syndrome (NCT01385124 and NCT01596075).[21] The combination of CBD with standard GVHD prophylaxis was found to be safe. Compared with 101 historical controls treated with standard prophylaxis, patients who received CBD appeared to have a lower incidence of grade II to grade IV GVHD, suggesting that a randomized controlled trial (RCT) is warranted.

In May of 2018, Mount Vernon planted an industrial cultivar of hemp on the four-acre Pioneer Farm site. Under the 2015 Industrial Hemp Law enacted by the Virginia General Assembly and working with the industrial hemp research program of the University of Virginia, Mount Vernon planted hemp to expand its interpretation of George Washington’s role as an enterprising farmer. As the first historic home of the founding fathers to plant hemp, Mount Vernon will use the plant as an interpretative tool to help better tell the story of Washington’s role as a farmer.

The health consequences of cannabis use in developing countries are largely unknown beacuse of limited and non-systematic research, but there is no reason a priori to expect that biological effects on individuals in these populations would be substantially different to what has been observed in developed countries. However, other consequences might be different given the cultural and social differences between countries.
Cultivated industrial hemp plants usually consist of a spindly main stalk covered with leaves. Considered a low-maintenance crop, hemp plants typically reach between 6 to 15 feet in height. Depending on the purpose, variety and climatic conditions, the period between planting and harvesting ranges from 70 to 140 days. One acre of hemp can yield an average of 700 pounds of grain, which in turn can be pressed into about 22 gallons of oil and 530 pounds of meal. The same acre will also produce an average of 5,300 pounds of straw, which can be transformed into approximately 1,300 pounds of fiber.
Approximately 65% of sub-Saharan Africa’s agricultural land is degraded, according to data collected in 2015, resulting in food insecurity and a declining economy in a region where the agricultural industry employs more than half of the total labor force. Hemp’s soil nutrient replenishing properties could be the key to reviving crop production, providing a novel food source (hemp seeds) and boosting the agro-based economies of South Africa and other hemp-cultivating sub-Saharan countries.
The leaves, stems, flower buds and extracts from the marijuana plant can be eaten, brewed in a tea or put into a tincture. It can also be vaporized using an e-cigarette pen. Yale University researchers surveyed 3,847 Connecticut high school students about this practice in a 2015 study that was published in the journal Pediatrics. The study found nearly one in five e-cigarette users also have vaporize cannabis or byproducts like hash oil using the device. 
Marijuana or marihuana (herbal cannabis),[157] consists of the dried flowers and subtending leaves and stems of the female Cannabis plant.[158][159][160][161] This is the most widely consumed form,[161] containing 3% to 20% THC,[162] with reports of up-to 33% THC.[163] This is the stock material from which all other preparations are derived. Although herbal cannabis and industrial hemp derive from the same species and contain the psychoactive component (THC), they are distinct strains with unique biochemical compositions and uses. Hemp has lower concentrations of THC and higher concentrations of CBD, which decreases the psychoactive effects[164][165]

In the past few years, just such a cure has seemingly presented itself. Amid the less common remedies that can be found on the internet—special diets, meditation, biofeedback, surgical implants—a new product has recently gained prominence: CBD oil (sometimes known simply as “hemp oil”), so named for its chief chemical compound, cannabidiol, which occurs naturally in cannabis plants. In online forums and news articles, CBD has been hailed as a new frontier in epilepsy treatment, with parents testifying that it managed to stop their children’s seizures when nothing else could.

Canadian experience with growing hemp commercially for the last 4 years has convinced many growers that it is better to use a single-purpose cultivar, seed or fiber, than a dual-purpose cultivar. The recent focus of Canadian hemp breeders has been to develop cultivars with high seed yields, low stature (to avoid channeling the plants’ energy into stalk, as is the case in fiber cultivars), early maturation (for the short growing seasons of Canada), and desirable fatty acid spectrum (especially gamma-linolenic acid).
In short, Cannabidiol – or CBD – is a cannabis compound that has many therapeutic benefits. Usually extracted from the leaves and flowers of hemp plants – though marijuana can also be a source – CBD oil is then incorporated into an array of marketable products. These products vary from the most common, like sublingual oils and topical lotions, to the less common (think CBD lattes). Basically, if you can dream it, you can buy it.
The arguments for hemp's advantages are mostly long-standing (aside from ongoing discoveries about cannabinoids, new applications in nanotechnology and industrial oils, and so on). But our current opportunities to advance hemp's status as a crop — as well as a transformed cultural climate for cannabis generally — certainly qualify as 'groundbreaking' conditions.
This is a hugely beneficial effect of CBD. Free radicals are the culprits when it comes to oxidative damage and inflammation. But CBD’s antioxidant properties can help to combat the negative effects of everyday exposure to elements that increase the production of free radicals. These elements include pervasive, but hugely unsurprising, things like:

Jump up ^ Nadulski T, Pragst F, Weinberg G, Roser P, Schnelle M, Fronk EM, Stadelmann AM (December 2005). "Randomized, double-blind, placebo-controlled study about the effects of cannabidiol (CBD) on the pharmacokinetics of Delta9-tetrahydrocannabinol (THC) after oral application of THC verses standardized cannabis extract". Ther Drug Monit. 27 (6): 799–810. PMID 16306858.
Cannabinoids may cause antitumor effects by various mechanisms, including induction of cell death, inhibition of cell growth, and inhibition of tumor angiogenesis invasion and metastasis.[9-12] Two reviews summarize the molecular mechanisms of action of cannabinoids as antitumor agents.[13,14] Cannabinoids appear to kill tumor cells but do not affect their nontransformed counterparts and may even protect them from cell death. For example, these compounds have been shown to induce apoptosis in glioma cells in culture and induce regression of glioma tumors in mice and rats, while they protect normal glial cells of astroglial and oligodendroglial lineages from apoptosis mediated by the CB1 receptor.[9]

Several controlled clinical trials have been performed, and meta-analyses of these support a beneficial effect of cannabinoids (dronabinol and nabilone) on chemotherapy -induced nausea and vomiting (N/V) compared with placebo. Both dronabinol and nabilone are approved by the U.S. Food and Drug Administration for the prevention or treatment of chemotherapy-induced N/V in cancer patients but not for other symptom management.

CBD is a 5-HT1A receptor agonist, which may also contribute to an anxiolytic effect.[146] This likely means the high concentrations of CBD found in Cannabis indica mitigate the anxiogenic effect of THC significantly.[146] The cannabis industry claims that sativa strains provide a more stimulating psychoactive high while indica strains are more sedating with a body high.[147] However this is disputed by researchers.[148]
There are hundreds of compounds in marijuana, but scientists believe the one responsible for the drugs' psychoactive effects is tetrahydrocannbinol, or THC. THC binds to cannabinoid receptors throughout the body, and marijuana's "high" comes from THC's binding to brain regions responsible for pleasure, time perception and pain, according to the National Institute on Drug Abuse (NIDA). 
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.[28][29] In vitro, cannabidiol inhibited receptors affecting the activity of voltage-dependent sodium and potassium channels, which may affect neural activity.[30] A small clinical trial reported that CBD partially inhibited the CYP2C-catalyzed hydroxylation of THC to 11-OH-THC.[31]
A panellized system of hemp-lime panels for use in building construction is currently under test in a European Union-funded research collaboration led by the University of Bath. The panels are being designed to assure high-quality construction, rapid on-site erection, optimal hygrothermal performance from day one, and energy- and resource-efficient buildings. The 36-month-long work programme aims to refine product and manufacturing protocols, produce data for certification and marketing, warranty, insurance cover, and availability of finance. It also includes the development of markets in Britain, France, and Spain.[32]