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]
Full Spectrum CBD Oil contains some of the same terpenes as dried cannabis bud. Terpenes are the aroma molecules found in plants. Beta-caryophyllene (pepper) and myrcene (musk) are both been found in hemp oil.  According to recent research, beta-caryophyllene acts as a cannabinoid in the body. It engages some of the same cell sites as smoked cannabis. In particular, the terpene interacts with cell receptors that regulate the immune system.  Myrcene has been found to have antidepressant and anti-inflammatory effects. It also acts as an antioxidant and helps molecules move across cell membranes. The combination of essential fatty acids, vitamins, antioxidants and healing terpenes make hemp oil one powerful superfood.

Marijuana.com informs, engages and grows the cannabis community through coverage of marijuana law + politics, science + medicine, consumer trends, culture and commentary. The site also offers a forum for discussion of current events and issues of interest. Marijuana.com has been in operation since 1995 and is owned and operated by Weedmaps.com, the most widely used medical and recreational marijuana dispensary locator in the industry.
While most supplements have a single recommended dose, CBD is different. The amount of CBD you take depends on your doctor’s recommendations and your own research into how CBD will work for your unique needs. In general, it’s smart to start with a medium dose of CBD. This way, you can increase or decrease the dose as needed. In addition, it’s recommended to start with one half ML (half a dropper) of CBD oil, because you can always take more if needed.
There are many hair health benefits of hemp oil as well. Many non-commercial and herbal hair products like shampoos, hair oils, conditioners, etc. are made by using hemp oil. Like the skin care, massages with hemp oil products can improve blood circulation in the head and the brain. Washing hair with hemp oil shampoos and conditioners, can thicken the hair texture and keep the scalp away from dandruff. Thus hemp oil is very beneficial for your hair care as well. Loss of hair is also reduced by using them and scalp infections and problems are kept away.

In a study conducted by researchers from the Lautenberg Center, researchers discovered that CBD was more effective for treating inflammation and pain when used with other cannabis plant compounds derived from a full spectrum product over a CBD isolate product alone. This is one reason that full spectrum products (those containing THC) are popular.  
Endocannabinoids are organically produced by the human body, generated by the endocannabinoid system. Endocannabinoids have been found to help in the regulation of sleep, pain and the responses of the immune system. Cannabis scientists have been investigating the role of physiological cannabinoids in tissue recovery and disease. It is fascinating that the endocannabinoids activate the same receptors as the psychoactive THC.
I recommend CBD International to everyone I know who is fighting cancer including the Hospice team taking care of my daughter. All the different nurses always ask, they have many patients asking. If I can save anyone the three months it took me to find you, that time saved could save a life. When you find yourself in a situation like a cancer diagnosis, you are searching for something to help, you really don't know what you are getting. My visits to the medical marijuana shops in Southern California left me frustrated, they are not knowledgeable and kept steering me to edibles and hash oil and trying to find the correct treatment was for me, about the only thing I could do for my daughter that might help her and the only thing she was willing to try. From the very first contact on your website, to the questionnaire to all correspondence, so timely and the integrity and kindness you and your company have shown me, I can't praise you enough. You guys are the real deal.
Despite the many states that have legalized some or all forms of marijuana, federally the U.S. Drug Enforcement Administration (DEA) continues to classify CBD as a Schedule I drug. Schedule I drugs are defined by the DEA as "drugs with no currently accepted medical use and a high potential for abuse." This is how not just CBD, but the entire cannabis plant is classified.
President Obama’s execution of the Agricultural Act of 2014 is an integral piece to CBD oil’s legality. If a plant is deemed legal (where the determining factor is a THC level under .3%) that then makes all products made from the source material legal as well. Did you ever wonder why your hemp lotion 15-20 years ago was legal but “smoking a little weed” wasn’t? In this case, it’s all about the THC levels your plant doesn’t have.
Cannabinoids can be agonists, inverse agonists or inhibitors. The agonists simply stimulate a bodily function once they adhere to their respective receptors. Inverse agonists associate themselves with the same receptors as agonists, while causing a chemical reaction opposite to the ones caused by agonists. Inhibitors simply stop a chemical reaction or response once bound to their receptors.
^ Jump up to: a b Batalla A, Bhattacharyya S, Yücel M, Fusar-Poli P, Crippa JA, Nogué S, Torrens M, Pujol J, Farré M, Martin-Santos R (2013). "Structural and functional imaging studies in chronic cannabis users: a systematic review of adolescent and adult findings". PLOS One. 8 (2): e55821. Bibcode:2013PLoSO...855821B. doi:10.1371/journal.pone.0055821. PMC 3563634. PMID 23390554. The most consistently reported brain alteration was reduced hippocampal volume which was shown to persist even after several months of abstinence in one study and also to be related to the amount of cannabis use Other frequently reported morphological brain alterations related to chronic cannabis use were reported in the amygdala the cerebellum and the frontal cortex...These findings may be interpreted as reflecting neuroadaptation, perhaps indicating the recruitment of additional regions as a compensatory mechanism to maintain normal cognitive performance in response to chronic cannabis exposure, particularly within the prefrontal cortex area.
Cannabis has mental and physical effects, such as creating a "high" or "stoned" feeling, a general change in perception, heightened mood, and an increase in appetite.[21][22] Onset of effects is within minutes when smoked, and about 30 to 60 minutes when cooked and eaten.[21][23] They last for between two and six hours.[23] Short-term side effects may include a decrease in short-term memory, dry mouth, impaired motor skills, red eyes, and feelings of paranoia or anxiety.[21][24][25] Long-term side effects may include addiction, decreased mental ability in those who started as teenagers, and behavioral problems in children whose mothers used cannabis during pregnancy.[21] There is a strong relation between cannabis use and the risk of psychosis,[26] though the cause-and-effect is debated.[27]

Professors William Emboden, Loran Anderson, and Harvard botanist Richard E. Schultes and coworkers also conducted taxonomic studies of Cannabis in the 1970s, and concluded that stable morphological differences exist that support recognition of at least three species, C. sativa, C. indica, and C. ruderalis.[68][69][70][71] For Schultes, this was a reversal of his previous interpretation that Cannabis is monotypic, with only a single species.[72] According to Schultes' and Anderson's descriptions, C. sativa is tall and laxly branched with relatively narrow leaflets, C. indica is shorter, conical in shape, and has relatively wide leaflets, and C. ruderalis is short, branchless, and grows wild in Central Asia. This taxonomic interpretation was embraced by Cannabis aficionados who commonly distinguish narrow-leafed "sativa" strains from wide-leafed "indica" strains.[73]
A. No. Based on available evidence, FDA has concluded that THC and CBD products are excluded from the dietary supplement definition under sections 201(ff)(3)(B)(i) and (ii) of the FD&C Act, respectively. Under those provisions, if a substance (such as THC or CBD) is an active ingredient in a drug product that has been approved under 21 U.S.C. § 355 (section 505 of the FD&C Act), or has been authorized for investigation as a new drug for which substantial clinical investigations have been instituted and for which the existence of such investigations has been made public, then products containing that substance are outside the definition of a dietary supplement. FDA considers a substance to be "authorized for investigation as a new drug" if it is the subject of an Investigational New Drug application (IND) that has gone into effect. Under FDA’s regulations (21 CFR 312.2), unless a clinical investigation meets the limited criteria in that regulation, an IND is required for all clinical investigations of products that are subject to section 505 of the FD&C Act.
Prescription medicine (Schedule 4) for therapeutic use containing 2 per cent (2.0%) or less of other cannabinoids commonly found in cannabis (such as ∆9-THC). A schedule 4 drug under the SUSMP is Prescription Only Medicine, or Prescription Animal Remedy – Substances, the use or supply of which should be by or on the order of persons permitted by State or Territory legislation to prescribe and should be available from a pharmacist on prescription.[81]
In the United States, cannabis is overall the number four value crop, and is number one or two in many states including California, New York and Florida, averaging $3,000 per pound ($6,600/kg).[255][256] Some believe it generates an estimated $36 billion market.[257] Some have argued that this estimate is methodologically flawed, and makes unrealistic assumptions about the level of marijuana consumption. Other estimates claiming to correct for this flaw claim that the market is between $2.1-$4.3 billion.[248] The United Nations Office on Drugs and Crime claims in its 2008 World Drug Report that typical U.S. retail prices are $10–15 per gram (approximately $280–420 per ounce). Street prices in North America are known to range from about $40–$400 per ounce ($1.4–$14/g), depending on quality.[258]
People looking to buy CBD creams will find the most effective and aromatic CBD lotions at Green Roads World. In order to produce the highest quality CBD muscle rub available on the market, Green Roads obtains CBD from US-grown hemp using CO2 supercritical extraction. CBD topicals are highly effective because CBD tends to remain in the application area when applied topically, as opposed to sublingual or edible products that enter the bloodstream and diffuse throughout the body. Green Roads CBD Pain Cream is a unique and potent CBD product, artfully crafted by a licensed pharmacist with more than twenty years of compounding experience.
Now 13, Jackson — whose diagnosis is undetermined — continues to use marijuana every day. (Like many patients, he ingests it in droplet form, which allows for more precise dosing and avoids lung problems.) He still has seizures, but they are less severe and they occur once every week or two, down from around 200 a month before he started using cannabis. He is back in school full time and is well enough to go on hikes and bike rides with his family.
In June 2018, the FDA approved the drug Epidiolex, an oral preparation of pure CBD for treatment of two rare and severe forms of epilepsy in children. The drug is made by the GW Pharmaceutical Company and was tested in three randomized, double-blind, placebo-controlled clinical trials, including 516 patients. It was found to be effective in reducing the frequency of seizures.
Here’s a mind-blowing example: a study in 2014 found that people with THC in their systems were 80 percent less likely to die from traumatic head injuries than those without. THC is great for Insomnia “Indica” Recent research suggests it may also improve breathing while reducing sleep interruptions. Great news for those suffering from conditions such as sleep apnea! Fact, studies have confirmed that THC eases a variety of PTSD-related symptoms including agitation, depression, insomnia, flashbacks, and nightmares. Not only does the psychoactive protect brain cells, it also stimulates brain growth. Researchers have found that THC interacts with the same type of receptors in the hypothalamus that release the hormone ghrelin, which stimulates hunger. In fact, THC can even make food taste better. Interestingly, certain cannabis cultivars can also suppress appetite, which can be another advantage for a lot of people – weight loss. Enhances Senses! In 2008, researchers at MIT discovered that treating a concerning antibiotic-resistant pathogen with the psychoactive successfully killed the bacteria when other drugs could not even MRSA! As a potent antioxidant, one of the many health benefits of THC is protecting the body from stress-related damage. A known bronchodilator, studies conducted back in 1975 provided the first evidence of the cannabinoid’s ability to ease asthma attacks. While multiple cannabinoids show anti-cancer potential, THC is one of the main contenders! THC is a muscle relaxant on its own, the molecule’s ability to ease cramps and tension is a plus. THC also has anticonvulsant properties. Continuing 1 more time…
Hi Patti, our full spectrum CBD oil is a good option for assisting with sleep. We can’t legally prescribe, or tell you our product will cure or treat insomnia. Our CBD oil assist with sleep, by relaxing the body enough to sleep. It will also assist with having a deeper sleep. I would recommend our strongest strength that we offer, which is our 5x strength CBD oil. Which our 5x strength gives you about 50mg per serving. https://zatural.com/products/cannabis-sativa-hemp-oil-drops
Therefore, ingesting 2,000 mg of CBD oil daily would result in a maximum consumption of 6 mg of THC, which would cause a positive marijuana urine test approximately 23 percent of the time. It’s important to keep in mind the amount of CBD consumed. Although unlikely, it is possible for those who take CBD to fail drug tests if they are taking unusually high doses.

There are many ways to prepare cannabis for consumption. And while final marijuana products may come in many forms, each aims to provide rich concentrations of the terpenes, cannabinoids, and other desirable compounds the marijuana plant produces. From the simple process of drying and curing marijuana flowers, to the sophisticated chemistry of producing cannabis concentrates, here’s a guide to the most common forms of cannabis.
The existence of substantial clinical investigations regarding CBD has been made public. For example, two such substantial clinical investigations include GW Pharmaceuticals’ investigations regarding Sativex and Epidiolex. (See Sativex Commences US Phase II/III Clinical Trial in Cancer Pain and GW Pharmaceuticals Receives Investigational New Drug (IND) from FDA for Phase 2/3 Clinical Trial of Epidiolex in the Treatment of Dravet Syndrome ).
In 2015, The Hebrew University of Israel published a study that documented the potency of single-molecule CBD extract versus the potency of whole-plant CBD-rich extract. It found that extract taken from whole plant CBD-rich cannabis is therapeutically superior to single-molecule extract. The scientists behind this study noticed that science had been utilizing pure, single-molecule CBD, which resulted in a bell-shaped dose-response curve. This means that CBD’s efficacy plummets at very high and very low doses.
CBD vaporizer oils can be used in a vaporizer of your choice. They offer a healthy way of inhaling your daily dose of the CBD supplement. Vaping is a very direct way of ingesting CBD oil. When you vape, the CBD enters the lungs and goes directly into the bloodstream, completely bypassing the digestive system. This method allows for greater bioavailability.
Medical cannabis (or medical marijuana) refers to the use of cannabis and its constituent cannabinoids, to treat disease or improve symptoms. Cannabis is used to reduce nausea and vomiting during chemotherapy, to improve appetite in people with HIV/AIDS, and to treat chronic pain and muscle spasms.[103][104] Cannabinoids are under preliminary research for their potential to affect stroke.[105]
Hemp goes back as one of the oldest crops in human history. Why is it so popular? For starters, it requires half the water (even less for some crops!)  of wheat and can be grown without pesticides. For health enthusiasts or anyone generally considerate of the environment, this is a great news. This crop can then be used for nutrition as a great fiber source! The whole seeds are healthy for complete proteins and omegas, concentrated antioxidants, vitamins, and other healthy nutrients. Outside of the United States, hemp is grown as an industrial crop on a large scale. In Europe, for example, we reviewed over 3,000 cultivars before selecting the right farm for us. 
Another concern is about medications with which CBD might interact. This won’t be an issue with most drugs, says Sunil Kumar Aggarwal, M.D., Ph.D., a palliative medicine physician and scientist who studies cannabis and integrates it into his Seattle medical practice. The exceptions are blood thinners, IV antibiotics, and other drugs whose exact dosing is crucial and must be monitored closely, he says. (Of course, if you have a health problem, talk to your doctor before using CBD, and never take it instead of seeing your physician for a serious condition.) 

Many a time, multiple cannabinoid compounds are used together, either knowingly or unknowingly.  It is, hence, tough to discern the extent to which each compound is involved in causing the desired effect. There are cases where a group of cannabinoids works synergistically in bringing about bodily reactions. Studies selectively employing CBD oil are few in number, but promising.
The exploding recreational market for marijuana has rapidly popularized many methods of consuming cannabis that was decidedly part of the fringe just a few short years ago. Smoking marijuana remains the most widely embraced method, due to the greater accessibility of marijuana flower. But legal recreational cannabis is introducing many marijuana users to new forms of the drug, especially concentrates and edibles. Here’s a brief overview of the major methods for consuming marijuana.
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). 
The statements made regarding these products have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease. Please consult your health care professional about potential interactions or other possible complications before using any product. The Federal Food, Drug and Cosmetic Act requires this notice.
So instead, go with an American company who has built up a good reputation of selling high-quality products. Every Day Optimal is by far one of the best in the business right now. They have amazing purification processes that take their quality to the next level. Furthermore, they only use medicinal hemp, which is the best grade possible! Their company has developed a unique structure which allows them to carry out quality checks at any given time. The CBD products they sell are also 100% legal to use.
PTSD. My husband suffers chronic PTSD from active military service. We live not far from a large Army base and though my husband served with another counties military we hear stories constantly of family breakdowns over PTSD. It’s not a easy path but I’m hoping one day to find something to stop the endless trips to the psych ward. It’s just not right that those who serve come home to no government help.
In a study whose findings have not yet been published, he and a colleague, Daniel Friedman, found that patients receiving CBD in addition to their usual medicines had 39 percent fewer convulsive seizures than patients who remained on their normal drug regimen. Given that the study included only the most treatment-resistant patients, this is an “excellent response,” Devinsky says.
Hemp producers who sell CBD products will often use the 2014 Farm Bill to claim that it is legal. This bill includes a provision that allows for the legal cultivation of hemp provided it is used for academic agricultural research or under a state pilot program. But there is still confusion about whether the legal allowance for cultivation also includes selling it.
A. When a product is in violation of the FD&C Act, FDA considers many factors in deciding whether or not to initiate an enforcement action. Those factors include, among other things, agency resources and the threat to the public health. FDA also may consult with its federal and state partners in making decisions about whether to initiate a federal enforcement action.
Since it is federally illegal banks and the different card processing servers will not deal with “federally Illegal activities”. If you look at the fine print for Square they also do not allow the user to conduct sales of ammo, firearms or any gun parts. You have to set things up for cash transactions or figure out how to list your “product” so that it is legal to run credit card transactions with. Also PayPal or Pay anywhere are great companies to accept credit cards. Pay Anywhere also was giving out a free card reader that allowed you to use the chip or swipe where others were charging for a chip reader (granted it is bluetooth for a mobile reader).
Can cannabis help treat psoriasis? The active cannabinoids in cannabis may be an effective treatment for psoriasis. Research shows that they offer potential health benefits that could relieve the symptoms of psoriasis. They may be able to reduce inflammation and itching, control pain, and even heal wounds. Learn more about cannabis for psoriasis here. Read now

In 2014, President Obama signed the Farm Bill of 2014 into law. This law contained a section that removed hemp from Schedule 1 of the Controlled Substances Act. It also created a legal structure that made cultivation and research of hemp legal in states that wanted to initiate “Pilot Research Programs” into the cultivation and marketing of hemp and hemp-derived products.
Of course, because legal marijuana is in such a confusing transitional period, even here there are potential exceptions. The U.S. Food and Drug Administration (FDA) approved Epidiolex, a treatment for a rare form of pediatric epilepsy that contains CBD. The DEA decided to classify this as a Schedule 5 drug, the scheduling that indicates the lowest potential for addiction and abuse.
Following an 1836–1840 travel in North Africa and the Middle East, French physician Jacques-Joseph Moreau wrote on the psychological effects of cannabis use; he was a member of Paris' Club des Hashischins.[citation needed] In 1842, Irish physician William Brooke O'Shaughnessy, who had studied the drug while working as a medical officer in Bengal with the East India company, brought a quantity of cannabis with him on his return to Britain, provoking renewed interest in the West.[204] Examples of classic literature of the period featuring cannabis include Les paradis artificiels (1860) by Charles Baudelaire and The Hasheesh Eater (1857) by Fitz Hugh Ludlow.

Hempseed oil is manufactured from varieties of Cannabis sativa that do not contain significant amounts of tetrahydrocannabinol (THC), the psychoactive element present in the cannabis plant. This manufacturing process typically includes cleaning the seed to 99.99% before pressing the oil. There is no THC within the hempseed, although trace amounts of THC may be found in hempseed oil when plant matter adheres to the seed surface during manufacturing. The modern production of hempseed oil, particularly in Canada, has successfully lowered THC values since 1998.[5] Regular accredited sampling of THC in Canadian hemp seed oil shows THC levels usually below detection limit of 4 ppm (parts per million, or 4 mg/kg). Legal limit for THC content in foodstuffs in Canada is 10 ppm.[6] Some European countries have limits of 5 ppm or none-detected, some EU countries do not have such limits at all.
Medical cannabis (or medical marijuana) refers to the use of cannabis and its constituent cannabinoids, to treat disease or improve symptoms. Cannabis is used to reduce nausea and vomiting during chemotherapy, to improve appetite in people with HIV/AIDS, and to treat chronic pain and muscle spasms.[103][104] Cannabinoids are under preliminary research for their potential to affect stroke.[105]
In 2001, the Drug Enforcement Administration aimed to change that by attempting to ban people and companies from importing and selling food products containing hemp seed and oil. The Hemp Industries Association responded to this block by successfully suing the DEA, arguing that hemp oil is primarily consumed as a nutritional culinary oil and used in body care products — not to get people high — and therefore, should be allowed.
Ringo’s Gift: This cultivar is named after the cannabidiol pioneer, Lawrence Ringo. Ringo’s Gift is a cross between two other CBD-rich strains, AC/DC and Harle-tsu. Its CBD to THC ratio varies from 1:1 to 22:1, but it consistently favors CBD. Ringo’s Gift smells of earthy pine and promises full-bodied relaxation in tandem with calming cerebral effects which, together, silence pain and anxiety.

In 2014, Mississippi passed HB 1231, which creates an affirmative defense for the possession and use of CBD oil in very limited circumstances. Known as “Harper Grace's Law,” the bill only provides legal protection to patients diagnosed with a debilitating epileptic condition, and only if the CBD oil was either obtained from or tested by the National Center for Natural Products Research at the University of Mississippi and dispensed by the Department of Pharmacy Services at the University of Mississippi Medical Center.
Aside from the mentioned study, the authorities do not acknowledge the many other studies proving the safety and efficacy of pot when used as medicine. They also cite the fact that other countries who took a more relaxed stand on cannabis suffered serious societal harms. “Therefore, we have strict laws against the trafficking, possession, consumption, and import or export of illicit drugs including cannabis and cannabis products.”

Discontinue use and consult a medical doctor immediately if you experience unusual symptoms. Consult a medical doctor before use if you have been treated for, or diagnosed with or have a family history of any medical condition, or if you are using any prescription or over-the-counter drug(s), including blood thinners. Consult a medical doctor before starting any diet or exercise program. Improper use of this product will not improve results and is not advised. Use only as directed.
For some, a sore muscle on your lower back may feel better after using a CBD patch. For others, a headache might respond well to a CBD tincture. Pain is a universal feeling, but we respond differently and our bodies react in different ways depending on our overall health. The variety of ways in which CBD is consumed allows customers to pick a method based on their specific condition and their personal preference. For example, someone with sensitive lungs who doesn’t like smoking may prefer treating their pain with CBD capsules. Someone who takes a lot of pills, in general, may enjoy the experience of vaporizing. CBD is a naturally occurring chemical compound found in the cannabis and hemp plants. It does not produce the difficult side effects that those on prescription opioids commonly experience.
I suffer from osterarthritis, degenerative disc disease with so far one neck triple fusion of vertebrae, lower disc bulging discs, Class 3 Hip disease, fibromyalgia, just to name a few. Needless to say, I tried 750mg of so called top of the line CBD oil for 4 months and it did nothing. I am looking for about 1200 or 2500mg of CBD oil and i think it will help me, cuz my pain is so bad that I use to take fentanyl patches and oxycodone to help it until the DEA came into medical practice. Then there was nothing for years. CBD oil gave me better sleep, better mood, more stamina and energy. But now I find I can’t afford the higher dose if I want a reputable company. I don’t know what to do. I don’t have over a hundred dollars to spend a month on CBD oil but I probably will go without something else to purchase it. I can’t handle laying in bed all the time.
It is often claimed by growers and breeders of herbal cannabis that advances in breeding and cultivation techniques have increased the potency of cannabis since the late 1960s and early '70s when THC was first discovered and understood. However, potent seedless cannabis such as "Thai sticks" were already available at that time. Sinsemilla (Spanish for "without seed") is the dried, seedless inflorescences of female cannabis plants. Because THC production drops off once pollination occurs, the male plants (which produce little THC themselves) are eliminated before they shed pollen to prevent pollination. Advanced cultivation techniques such as hydroponics, cloning, high-intensity artificial lighting, and the sea of green method are frequently employed as a response (in part) to prohibition enforcement efforts that make outdoor cultivation more risky. It is often cited that the average levels of THC in cannabis sold in the United States rose dramatically between the 1970s and 2000, but such statements are likely skewed because undue weight is given to much more expensive and potent, but less prevalent samples.[252]
^ Jump up to: a b Batalla A, Bhattacharyya S, Yücel M, Fusar-Poli P, Crippa JA, Nogué S, Torrens M, Pujol J, Farré M, Martin-Santos R (2013). "Structural and functional imaging studies in chronic cannabis users: a systematic review of adolescent and adult findings". PLOS One. 8 (2): e55821. Bibcode:2013PLoSO...855821B. doi:10.1371/journal.pone.0055821. PMC 3563634. PMID 23390554. The most consistently reported brain alteration was reduced hippocampal volume which was shown to persist even after several months of abstinence in one study and also to be related to the amount of cannabis use Other frequently reported morphological brain alterations related to chronic cannabis use were reported in the amygdala the cerebellum and the frontal cortex...These findings may be interpreted as reflecting neuroadaptation, perhaps indicating the recruitment of additional regions as a compensatory mechanism to maintain normal cognitive performance in response to chronic cannabis exposure, particularly within the prefrontal cortex area.
Food and beverage products containing CBD were introduced in the United States in 2017.[53] Similar to energy drinks and protein bars which may contain vitamin or herbal additives, food and beverage items can be infused with CBD as an alternative means of ingesting the substance.[54] In the United States, numerous products are marketed as containing CBD, but in reality contain little or none.[55] Some companies marketing CBD-infused food products with claims that are similar to the effects of prescription drugs have received warning letters from the Food and Drug Administration for making unsubstantiated health claims.[56] In February 2019, the New York City Department of Health announced plans to fine restaurants that sell food or drinks containing CBD, beginning in October 2019.[57]
With the increasing hype surrounding CBD, some — including this author — have speculated that it will become the next health fad, like taking fish oil or opting for a gluten-free diet, whether or not the research to support far-reaching health benefit claims pans out (see this recent New York Times op-ed by Cornell Medical College psychiatrist Richard Friedman urging caution). “Big Beverage” companies like Coca-Cola have even been exploring whether they should jump in the ring lest they miss out, bringing CBD infused drinks to the mass market sometime in the not-too-distant future (see my blogpost "Coca, Cola, and Cannabis: Psychoactive Drugs as Beverages").

The clinical trials performed with Sativex have recently been assessed in two independent review articles (Barnes 2006; Pérez 2006). In a Phase II clinical trial in 20 patients with neurogenic symptoms (Wade et al 2003), Tetranabinex, Nabidiolex, and Sativex were tested in a double-blind RCT vs placebo (Table 1). Significant improvement was seen with both Tetranabinex and Sativex on pain (especially neuropathic), but post-hoc analysis showed symptom control was best with Sativex (p < 0.0001), with less intoxication than with THC-predominant extract.
Environmental sex determination is known to occur in a variety of species.[39] Many researchers have suggested that sex in Cannabis is determined or strongly influenced by environmental factors.[27] Ainsworth reviews that treatment with auxin and ethylene have feminizing effects, and that treatment with cytokinins and gibberellins have masculinizing effects.[15] It has been reported that sex can be reversed in Cannabis using chemical treatment.[40] A PCR-based method for the detection of female-associated DNA polymorphisms by genotyping has been developed.[41]

Until 2017, products containing cannabidiol marketed for medical purposes were classed as medicines by the UK regulatory body, the Medicines and Healthcare products Regulatory Agency (MHRA) and could not be marketed without regulatory approval for the medical claims.[91] As of 2018, cannabis oil is legal to possess, buy, and sell in the UK, providing the product does not contain more than 0.2% THC and is not advertised as providing a medicinal benefit.[92]

Hashish (also spelled hasheesh, hashisha, or simply hash) is a concentrated resin cake or ball produced from pressed kief, the detached trichomes and fine material that falls off cannabis flowers and leaves.[178] or from scraping the resin from the surface of the plants and rolling it into balls. It varies in color from black to golden brown depending upon purity and variety of cultivar it was obtained from.[179] It can be consumed orally or smoked, and is also vaporised, or 'vaped'.[180] The term "rosin hash" refers to a high quality solventless product obtained through heat and pressure.[181]
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