Cannabis has been cultivated by humans, for a variety of purposes, since antiquity. So it comes as no surprise that there are several different species and even different varieties within the species, depending on the purpose the plants were bred for. Through artificial selection, different species of cannabis have different properties–some have been used for medicinal purposes, others as food, and others to create clothes, ropes, and other items.
Convection vaping works by heating up the material by blowing hot air through it. The material is transformed into vapor without direct contact. Since the air flows through the material evenly, convection vaping results in a smooth taste; however, the vaporizer may take a while to reach the optimal temperature level. Convection vaporizers are usually more expensive.
Selective breeding of cannabis plants has expanded and diversified as commercial and therapeutic markets develop.[13] Some growers in the US succeeded in lowering the proportion of CBD-to-THC to accommodate customers who preferred varietals that were more mind-altering due to the higher THC and lower CBD content.[52] In the US, hemp is classified by the federal government as cannabis containing no more than 0.3% THC by dry weight. This classification was established in the 2018 Farm Bill and was refined to include hemp-sourced extracts, cannabinoids, and derivatives in the definition of hemp.[53]
In nature, Cannabis ruderalis typically has the lowest levels of THC, Cannabis sativa has a higher level of THC than it has CBD, and Cannabis indica has a higher level of CBD than it has THC. However, since man has been cultivating cannabis (and especially Cannabis sativa) for thousands of years, the effects of artificial selections have led to several different types of cannabis even within the same species, depending on the purpose the cannabis was cultivated for.
Collin, C., Ehler, E., Waberzinek, G., Alsindi, Z., Davies, P., Powell, K., Notcutt, W., O'Leary, C., Ratcliffe, S., Novakova, I., Zapletalova, O., Pikova, J., and Ambler, Z. A double-blind, randomized, placebo-controlled, parallel-group study of Sativex, in subjects with symptoms of spasticity due to multiple sclerosis. Neurol.Res. 2010;32(5):451-459. View abstract.
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.[69] As of 2018, cannabis oil is legal to possess, buy, and sell in the UK, providing the product does not contain more than 0.3% THC and is not advertised as providing a medicinal benefit.[70]
^ 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. doi:10.1097/01.ftd.0000177223.19294.5c. PMID 16306858.
State and local governments may also regulate CBD. For example, the Massachusetts Department of Agricultural Resources issued a rule in June 2019 aligning state CBD regulations with FDA regulations. This means that although recreational marijuana is legal in the state, CDB cannot legally be sold in food or as a dietary supplement under state law.[90]
The good news is that numerous states have enacted legislation that allows for the use of CBD. Just four states (Idaho, South Dakota, Nebraska, and Kansas) forbid any access to marijuana. Ten states and Washington, D.C., currently allow for both medical and recreational use of cannabis, including CBD products. The other 36 states allow for the use of medical cannabis in some form, though some of these relegate this to CBD oil only.
^ Jump up to: a b c Devinsky, Orrin; Cilio, Maria Roberta; Cross, Helen; Fernandez-Ruiz, Javier; French, Jacqueline; Hill, Charlotte; Katz, Russell; Di Marzo, Vincenzo; Jutras-Aswad, Didier; Notcutt, William George; Martinez-Orgado, Jose; Robson, Philip J.; Rohrback, Brian G.; Thiele, Elizabeth; Whalley, Benjamin; Friedman, Daniel (May 22, 2014). "Cannabidiol: Pharmacology and potential therapeutic role in epilepsy and other neuropsychiatric disorders". Epilepsia. 55 (6): 791–802. doi:10.1111/epi.12631. PMC 4707667. PMID 24854329.
With that being said, one is not necessarily better than the other. CBD can be much more welcoming for those who do not want the potential high that comes with THC. THC may also offer more than just a high, with studies suggesting that it may possess health benefits of its own. More recently, evidence has suggested that THC and CBD can work together through what is known as the “entourage effect”. Taken together, CBD, THC, and the other compounds found in cannabis become more than the sum of their parts, amplifying their effects and working in synergy to support better health and well-being. It’s fine if you want just CBD on its own, but pairing your CBD with some THC may actually be good for you and give you whole plant benefits.

Psychoactive – Any chemical substance that can enter the brain from the bloodstream and directly affect the central nervous system is considered psychoactive. Many psychoactive substances have medical applications (such as anesthetics, psychiatric drugs, etc.), but some of these substances are used solely for recreation, causing dangerous side effects and addiction.
In 2013 a CNN program that featured Charlotte's Web cannabis brought increased attention to the use of CBD in the treatment of seizure disorders.[78][79] Since then, 16 states have passed laws to allow the use of CBD products with a doctor's recommendation (instead of a prescription) for treatment of certain medical conditions.[80] This is in addition to the 30 states that have passed comprehensive medical cannabis laws, which allow for the use of cannabis products with no restrictions on THC content.[80] Of these 30 states, eight have legalized the use and sale of cannabis products without requirement for a doctor's recommendation.[80]

Some manufacturers ship CBD products nationally, an illegal action which the FDA did not enforce in 2018, with CBD remaining the subject of an FDA investigational new drug evaluation, and is not considered legal as a dietary supplement or food ingredient as of December 2018.[81][82] Federal illegality has made it difficult historically to conduct research on CBD.[83] CBD is openly sold in head shops and health food stores in some states where such sales have not been explicitly legalized.[84][85]
The 2014 Farm Bill[86] legalized the sale of "non-viable hemp material" grown within states participating in the Hemp Pilot Program.[53] This legislation defined hemp as cannabis containing less than 0.3% of THC delta-9, grown within the regulatory framework of the Hemp Pilot Program.[87] The 2018 United States farm bill allowed for interstate commerce of hemp derived products, though these products still fall under the purview of the FDA.[88][89]
"If there was good evidence that people were using e-cigarettes just to quit smoking, there would be wide support," Benowitz says. "The problem is most of the e-cigarette use in the U.S. is dual use with cigarettes." People use e-cigs in places or situations where they can't smoke, like in a restaurant, but continue lighting up when they can, he explains.
The two main receptors in the endocannabinoid system are CB1 and CB2. Where THC directly affects these receptors, CBD has a subtler, more indirect approach. Instead of attaching to these receptors, CBD affects how these receptors signal the body and its chemicals. Furthermore, CBD increases the production of the body’s own cannabinoids by blocking the enzymes that can break them down.
^ Scott Gottlieb (July 30, 2019). "The CBD craze is getting out of hand. The FDA needs to act". The Washington Post. Retrieved July 31, 2019. ... many of the compound’s expansive benefits are fanciful, and in fact, the sale of much of the product is illegal under current law. The Food and Drug Administration must act to make sure commercial interests don’t strip away any legitimate value that the compound might have.
The e-liquid in vaporizer products usually contains a propylene glycol or vegetable glycerin-based liquid with nicotine, flavoring and other chemicals and metals, but not tobacco. Some people use these devices to vape THC, the chemical responsible for most of marijuana's mind-altering effects, or even synthetic drugs like flakka, instead of nicotine.

I was introduced to vaping from a friend who smoked 2-3 packages of cigarettes a day. I smoked only about a half package per day, but decided to try it. I always hated the way cigarettes made my lungs feel so heavy and my throat feel soar. As most people ,I was addicted to smoking from an early age in my life. I decided to try vaping, but still had a few cigarettes per day. As time went on I enjoyed the taste of the flavor and that it didn’t make your house smell. I now have several vape pens and enjoy many different flavors, and now free from regular cigarettes. I have heard of a disease that you can get from vaping called popcorn lung, I have yet to research this but that will be my next project.
Industrial hemp is produced by strains of Cannabis sativa that have been cultivated to produce minimal levels of THC and are instead artificially selected and bred to grow taller and sturdier. This is done to enable the plant to be used effectively in the production of hemp oil, wax, resin, hemp seed food, animal feed, fuel, cloth, rope, and more. Industrial hemp is exclusively made from Cannabis sativa.
CBD is otherwise most often used for its potential to provide calm and relaxation. On a chemical level, CBD is known to possess powerful antioxidant properties, which may contribute to reducing inflammation and relieving pain. Ongoing research and study are required to fully understand the potential of the cannabinoids therapeutic effects, but CBD may also help to:

^ 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. doi:10.1097/01.ftd.0000177223.19294.5c. PMID 16306858.


While marijuana is bred with the only purpose of maximizing its THC concentration, industrial hemp always has trace amounts of THC and naturally occurring high amounts of CBD (it has the highest CBD/THC ratio of all cannabis strains, even Cannabis ruderalis) This means that industrial hemp’s chemical profile makes it incapable of inducing intoxicating effects and getting you “high” from ingesting it.
From 2015 to July 2019, the FDA issued 48 warning letters to 23 American manufacturers of CBD products for false advertising and illegal interstate marketing of CBD as an unapproved drug to treat diseases, such as cancer, osteoarthritis, symptoms of opioid withdrawal, Alzheimer's disease, and pet disorders.[91][92] The FDA said that the letters were issued to enforce action against companies that were deceiving consumers by marketing illegal products for which there was insufficient evidence of safety and efficacy to treat diseases.[91] In July 2019, the FDA stated: "Selling unapproved products with unsubstantiated therapeutic claims — such as claims that CBD products can treat serious diseases and conditions — can put patients and consumers at risk by leading them to put off important medical care. Additionally, there are many unanswered questions about the science, safety, effectiveness and quality of unapproved products containing CBD."[91]

Cannabis – A type of flowering plant that includes three distinct variations: Cannabis ruderalis, Cannabis indica, and Cannabis sativa. Cannabis has a wide range of industrial and medical applications. It has been used since antiquity for its sturdy fiber, for oils, and for medicinal purposes. However, it has also been used as a recreational drug, a fact that renders the cultivation of cannabis strictly regulated because of some variations including high concentrations of THC.
3. You may feel a sore throat, dry mouth, and/or cold-like symptoms. For most people this passes after about a week. Drinking more liquids may help. Note that these are common symptoms of quitting smoking, related to tar. For a particular person they may or may not be aggravated by vaping. If these get very bad you should consider switching from vaping a PG based liquid (the most common liquids) to a VG based one or seeing a doctor (perhaps something else is causing the symptoms.)
^ Scott Gottlieb (July 30, 2019). "The CBD craze is getting out of hand. The FDA needs to act". The Washington Post. Retrieved July 31, 2019. ... many of the compound’s expansive benefits are fanciful, and in fact, the sale of much of the product is illegal under current law. The Food and Drug Administration must act to make sure commercial interests don’t strip away any legitimate value that the compound might have.
Generally a vaping device consists of a mouthpiece, a battery, a cartridge for containing the e-liquid or e-juice, and a heating component for the device that is powered by a battery. When the device is used, the battery heats up the heating component, which turns the contents of the e-liquid into an aerosol that is inhaled into the lungs and then exhaled.
If you’re concerned about your health, the electronic cigarette may also be a major benefit to you.  This is the most important one of the top ECIG reasons and why you should quit smoking cigarettes.  This product will allow you to feel like you are smoking without inhaling harmful carcinogens such as tar.  You’ll be able to calm your cravings without having to worry about emphysema. cbd oil
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