The Cannabis Health Index (CHI) is an evidence-based scoring system for cannabis (in general, not just CBD effects) and its effectiveness on various health issues based on currently available research data. Refer to cannabishealthindex.com for updated information and more about studies related to specific types of pain. Considering all of the studies together, which number over forty (for various types of pain), CBD and cannabis are shown to have a rating of likely probable efficacy. It is one of the best-substantiated medical uses of cannabinoids.
Using a process called “hybrid-nanoengineering” it is actually possible to get a highly bioavailable and absorbable form of CBD. The way that hybrid-nanoengineering works is that the cannabinoids and terpenoids are extracted from the hemp plant, combined with an Ayurvedic herbal blend and then processed into nanoparticle size. Nanoparticles (1/100 the width of a human hair) are easier for your body to absorb and transport to where they are needed within your body. This means that a hybrid-nanoengineered CBD is over 10x more bioavailable in the body than any other oil based CBD, CBD tincture or CBD capsule, and that just 10mg of a nanoparticle CBD is comparable to 100mg of standard CBD.
Various strains of "medical marijuana" are found to have a significant variation in the ratios of CBD-to-THC, and are known to contain other non-psychotropic cannabinoids. Any psychoactive marijuana, regardless of its CBD content, is derived from the flower (or bud) of the genus Cannabis. Non-psychoactive hemp (also commonly-termed industrial hemp), regardless of its CBD content, is any part of the cannabis plant, whether growing or not, containing a ∆-9 tetrahydrocannabinol concentration of no more than three-tenths of one percent (0.3%) on a dry weight basis. Certain standards are required for legal growing, cultivating and producing the hemp plant. The Colorado Industrial Hemp Program registers growers of industrial hemp and samples crops to verify that the THC concentration does not exceed 0.3% on a dry weight basis.
Kozela, E., Lev, N., Kaushansky, N., Eilam, R., Rimmerman, N., Levy, R., Vogel, Z. (2011, July 12). Cannabidiol inhibits pathogenic T cells, decreases spinal microglial activation and ameliorates multiple sclerosis?like disease in C57BL/6 mice. Retrieved January 17, 2018, from https://bpspubs.onlinelibrary.wiley.com/doi/full/10.1111/j.1476-5381.2011.01379.x
This is a topic I am asked about all the time, and have been for years: how does cannabis help sleep and health? I’ve heard that the number-two reason why people smoke or use cannabis is for sleep. Considering the recent passing of the recreational use of cannabis in California and other several states I think it is high time (pun intended!) to look at understanding CBD, one of the most active ingredients in medical cannabis.
Stephanie, generally, I have patients take 20 to 150mg a day for sleep +/- anxiety. Start low and go slow. Know the dosages of your product. Usually 2/3 to 3/4 of the daily dose is 1-2 hours before bedtime, and the other portion is upon waking (to improve wakefulness during the day). Other factors such as stress, hormone replacement, other meds & medical conditions, etc. play a role along with individual differences. I own a compounding pharmacy, so we see a lot of unique needs. I can't give more specific advice in this forum, but there is help!
Under federal law, cannabis (from which both CBD and marijuana are derived) is illegal everywhere, although the laws against it aren’t generally enforced in states that have legalized marijuana. Some manufacturers claim that CBD culled from legally imported industrial hemp, which has little to no THC, is fine to ship across the U.S., but many experts disagree, noting that because hemp comes from the same species as marijuana, cannabis sativa, all CBD falls under the DEA’s Schedule 1 designation. “This creative interpretation of the law runs afoul of reality,” says the Brookings Institution, a Washington, DC, think tank.
My mom is late stage dementia. We have tried coconut oil/black pepper/curcumin combo for years. Gives only tine bit of help, and is not something that reverses dementia. Maybe in someone who can score better than a 14 on the mme it could be of help. But cannabinoid is a different story. Cannabinoids produce better results in less time. Can't say yet that they will reverse anything though.
There are thousands of unique varieties of hemp. The cultivars used for CBD oil contain significantly higher concentrations of CBD than others. Using these uniquely potent plants, it is possible to extract cannabis oil that contains significant levels of cannabidiol, as well as essential vitamins, minerals, fatty acids, terpenes, flavonoids, and other non-psychoactive cannabinoids.
Schizophrenia. Research on the use of cannabidiol for psychotic symptoms in people with schizophrenia is mixed. Some early research suggests that taking cannabidiol four times daily for 4 weeks improves psychotic symptoms and might be as effective as the antipsychotic medication amisulpride. But other early research suggests that taking cannabidiol for 14 days is not beneficial. The mixed results might be related to the cannabidiol dose used and duration of treatment.
If you have dealt with anxiety before, you are not alone. As the author of a 2015 article published in the Dialogues in Clinical Neuroscience says: "Anxiety disorders...are the most prevalent mental disorders and are associated with immense health care costs and a high burden of disease." Yet many are finding that pharmaceuticals won't do, especially for chronic use, and they are turning increasingly to supplements and cannabidiol (CBD) oil for anxiety. 
In the United States, non-FDA approved CBD products are classified as Schedule I drugs under the Controlled Substances Act. This means that production, distribution, and possession of non-FDA approved CBD products is illegal under federal law. In addition, in 2016 the Drug Enforcement Administration added "marijuana extracts" to the list of Schedule I drugs, which it defined as "an extract containing one or more cannabinoids that has been derived from any plant of the genus Cannabis, other than the separated resin (whether crude or purified) obtained from the plant." Previously, CBD had simply been considered "marijuana", which is a Schedule I drug.