The following CBD information is all from research by Doctors and Scientists and is not intended as medical advice but just for informational purposes to help you understand CBD better. We always advise people to seek medical advice from their Doctors before they consider consuming CBD on a regular basis. All references are listed below.
Rich in CBD, cannabis has been used for centuries to fight illness, improve sleep, and lower anxiety. Today, our understanding of the potential benefits of CBD is growing by leaps and bounds—more and more, CBD is seen as a powerful disease-fighting agent. Thanks to decades of scientific investigation, it’s now possible to get the benefits of CBD in supplement form.
The cannabis plant is filled with hundreds of different compounds, several of which have been studied for decades for their therapeutic benefits. The cannabis compounds that have captured the most scientific interest are known as cannabinoids. Cannabinoids are now used in treatment for a broad—and growing—range of conditions and symptoms, from sleep and pain, to anxiety and inflammation, to Parkinson’s disease and cancer.
Cannabidiol—or CBD—is a cannabinoid that’s available in supplement form, and has a number of possible uses, including help with stress and anxiety, pain, and sleep problems. Unlike medical cannabis, CBD is legal in the UK.
Cannabidiol, or CBD, is a chemical compound that’s found in the cannabis plant. There are multiple species of cannabis that naturally contain CBD.
Cannabis has been used medicinally for centuries, as a sleep aid, a pain and nausea reducer, to relieve anxiety and other mood problems. In the mid-1960s, scientists identified the first cannabinoid. Since then, scientists have gone on to identify more than 80 individual cannabinoids and continue to investigate them for their potential symptom-relieving and disease-fighting abilities.
They each have distinctly different effects within the body, and different potential uses for health and disease. Two of the cannabinoids that are most widely recognized for their medicinal value are THC and CBD. THC (tetrahydrocannabinol) is a chemical compound that delivers the “high” that occurs from ingesting marijuana.
CBD, on the other hand, has no “high” associated with it. Instead, this compound has calming, anti-anxiety, and anti-psychotic effects. In fact, CBD is sometimes used in combination with THC to counteract THC’s mind-altering effects.
CBD has captured a great deal of scientific attention for its health benefits. Along with THC, CBD is the most well researched of the cannabinoids.
CBD can be extracted from the cannabis plant. CBD is also made synthetically. Both extracted CBD and synthetic CBD are found in supplements and medications specifically developed to take advantage of this compound’s therapeutic abilities. CBD is produced in pill form, as well as in sprays, tinctures, inhalers, edibles, e-liquids and oils.
Scientists have made a lot of progress in understanding how CBD produces its calming, pain-reducing, anti-inflammatory effects in the body—and there’s still more to learn. We know that CBD interacts with many different receptors, proteins, and other chemicals in the brain. These interactions create changes in the activity of neurotransmitters, hormones, and other cells throughout the brain and body. Through these interactions, CBD appears to be able to affect many of the body’s functions, from sleep-wake cycles and emotional regulation to inflammation, pain perception, and seizures.
Our bodies actually produce their own cannabinoids, as part of what’s known as the endocannabinoid system. This system is involved in regulating many physiological processes, including mood, pain perception, appetite, and cognitive functions. CBD interacts in part with the body’s endocannabinoid system and its receptors.
According to a growing body of research, CBD may play a role in the growth of new brain cells, a process known as neurogenesis. CBD is also widely recognized as having anti-oxidant and anti-inflammatory abilities, which make CBD a promising therapy for a wide range of conditions, from neurological disorders to autoimmune diseases to chronic pain and depression.
CBD also works as an analgesic—a pain reducer—in the body.
The ECS is a vast network of cell receptor proteins with many functions. Many have described the ECS as the greatest neurotransmitter system in the body. It lends a hand in seemingly just about everything including:
* Motor control
* Immune function
* Pain perception
* Bone development
The four primary purposes of the ECS include neuroprotection, stress recovery, immune balance, and haemostatic regulation. The last one is a fancy way of referring to a system that creates optimum energy balance in the body.
CBD is able to interact with cells in our bodies because the molecule has a similar composition to similar chemicals that the human body produces naturally called endocannabinoids.
Scientists are devoting a great deal of attention to CBD these days, and we’re continually learning more about the broad spectrum of benefits it may offer to health.
CBD has the ability to reduce anxiety, which can be helpful in reducing sleep difficulties and improving sleep quality. CBD may increase overall sleep amounts, and improve insomnia, according to research. CBD has been shown to reduce insomnia in people who suffer from chronic pain.
In smaller doses, CBD stimulates alertness and reduces daytime sleepiness, which is important for daytime performance and for the strength and consistency of the sleep-wake cycle.
CBD may help reduces REM behaviour disorder in people with Parkinson’s disease. REM behaviour disorder is a condition that causes people to act out physically during dreaming and REM sleep. Typically, during REM, the body is largely paralyzed, a state known as REM atonia. This immobilization keeps sleepers from reacting physically to their dreams. In REM behaviour disorder, this paralysis doesn’t occur, leaving people free to move—which can lead to disruptive sleep and to injuring themselves or their sleeping partners. Cannabis may also work to reduce pain and improve sleep quality in people with Parkinson’s disease.
CBD may help improve REM sleep abnormalities in people with post-traumatic stress disorder (PTSD).
For depression and anxiety
Cannabis has been used for centuries to treat nerves and anxiety, as well as other mood problems. CBD may help to improve both depression and anxiety, at least in part through its interactions with serotonin receptors in the brain. Research shows that CBD can reduce both mental and physical symptoms of anxiety. A study of CBD given to people before a public-speaking event indicates that CBD can help reduce stress—this and other research has shown that CBD can be an effective treatment for social anxiety.
Scientists are also studying the possible benefits of CBD for bipolar disorder.
CBD has been recognized as having anti-psychotic effects. CBD appears to reduce the psychotic symptoms of schizophrenia and may offer a significant new treatment for this and other mental disorders.
The body’s own endocannabinoid system is involved in managing pain perception. CBD is used in the treatment of pain in many different forms, including chronic and difficult-to-treat pain that’s associated with headaches, migraine, arthritis, and multiple sclerosis.
One of the most promising uses for CBD is as a treatment for epilepsy. Scientists have recognized for many years the anti-seizure capabilities of CBD. Recently, CBD has been shown effective in people whose epileptic seizures are resistant to other treatments.
There’s promising evidence that CBD may be useful in treating substance use disorders, including addiction to opioids, cocaine and amphetamines, cannabis, and nicotine. One study demonstrated CBD could reduce by 40 percent the number of cigarettes consumed by smokers trying to quit.
For neuroprotection and neurodegenerative disease
CBD is showing real promise as a compound that can contribute to protecting the brain, thanks to its anti-oxidant and anti-inflammatory abilities. Scientists are investigating its role in neurogenesis and its ability to help the brain heal from injury, and as a treatment for neurodegenerative disease. Research suggests that CBD may help to reduce brain damage from stroke or other neurological injury. And CBD is increasingly looked to as a possible therapy for several neurodegenerative diseases, including Parkinson’s, Alzheimer’s, and multiple sclerosis.
CBD is being examined closely for its possible role in cancer treatment, on number of different fronts. It can be effective in reducing pain and nausea in cancer patients. CBD can also stimulate appetite. What’s more, CBD is showing promise in treating several types of cancer directly, inhibiting cancer cell growth and metastasis.
With other cannabinoids
CBD is sometimes used in conjunction with the cannabinoid THC. Used together, CBD can counteract the “high” effects of THC. This can allow people to take advantage of the therapeutic benefits of THC without experiencing the psychoactive “high” that comes from this cannabinoid.
Always consult your doctor before you begin taking a supplement or make any changes to your existing medication and supplement routine. This is not medical advice, but it is information you can use as a conversation-starter with your physician at your next appointment.
The following doses are based on amounts that have been investigated in scientific studies. In general, it is recommended that users begin with the smallest suggested dose, and gradually increase until it has an effect.
A range of doses from 10mg to 600mg and higher amounts has been studied in scientific research, for sleep problems, anxiety, depression, stress, and other conditions.
CBD is generally well tolerated by healthy adults. Possible side effects of CBD include dry mouth, light-headedness, sleepiness, sluggishness in movement and/or thought (psychomotor slowing), and low blood pressure.
People with the following conditions should consult with a physician before using a CBD supplement:
- Pregnancy and breast feeding. It is recommended that women who are pregnant or breast feeding not use CBD.
- Parkinson’s disease. High doses of CBD may exacerbate muscle tremors or other muscle movements in people with Parkinson’s.
The following medications and other supplements may interact with CBD. Effects may include increasing or decreasing sleepiness and drowsiness, interfering with the effectiveness of the medications or supplements, and interfering with the condition that is being treated by the medication or supplement. These are lists of commonly used medications and supplements that have scientifically identified interactions with CBD. People who take these or any other medications and supplements should consult with a physician before beginning to use CBD.
Interactions with medications:
- Sedative medications
- Medications that are altered or broken down by the liver. Many commonly used medications are changed or broken down by the liver. Consult with your physician before using CBD if you are taking medication of any kind.
Michael J. Breus, PhD (2017) clinical psychologist Sleep Expert, WebMD for more than 14 years Writes for The Insomnia Blog, The Huffington Post, Psychology Today, Sharecare, and The Oz Blog https://www.thesleepdoctor.com/
Alvarez, FJ et al. (2008). Neuroprotective effects of the nonpsychoactive cannabinoid in hypoxic-ischemic newborn piglets. Pediatric research, 64(6): 653-8. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/18679164
Ashton, CH et al. (2005). Cannabinoids in bipolar affective disorder: a review and discussion of their therapeutic potential. Journal of psychopharmacology, 19(3): 293-300. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/15888515
Bakas, T et al. (2017). The direct actions of cannabidiol and 2-arachidonoyl glycerol at GABAA receptors. Pharmacological research, 119: 358-370. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/28249817
Baron, EP. (2015). Comprehensive Review of Medicinal Marijuana, Cannabinoids, and Therapeutic Implications in Medicine and Headache: What a Long Strange Trip its Been…Headache, 55(6): 885-916. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/26015168
Bradford, Alina (2017, May 18). What is THC? LiveScience. Retrieved from: https://www.livescience.com/24553-what-is-thc.html
Booz, GW (2011). Cannabidiol as an emergent therapeutic strategy for lessening the impact of inflammation on oxidative stress. Free radical biology and medicine, 51(5): 1054-61. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/21238581
Boychuk, DG, et al. (2015). The effectiveness of cannabinoids in the management of chronic nonmalignant neuropathic pain: a systematic review. Journal of oral & facial pain and headache, 29(1): 7-14. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/25635955
Brooks, PL and JH Peever. (2008). Unraveling the mechanisms of REM Sleep Atonia. Sleep, 31: 1473-91. Retrieved from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2579970/
Carlini, EA and JM Cunha. (1981). Hypnotic and antiepileptic effects of cannabidiol. Journal of clinical pharmacology, 21(8-9Suppl): 417S-427S. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/7028792?dopt=Abstract
Chagas, MH et al. (2014). Cannabidiol can improve complex sleep-related behaviours associated with rapid eye movement sleep behaviour disorder in Parkinson’s disease patients: a case series. Journal of clinical pharmacy and therapeutics, 39(5): 564-6. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/24845114
Cunha, JM et al. (1980). Chronic administration of cannabidiol to healthy volunteers and epileptic patients. Pharmacology, 21(3): 175-85. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/7413719?dopt=Abstract
Crippa, JM (2011). Neural basis of anxiolytic effects of cannabidiol (CBD) in generalized social anxiety disorder: a preliminary report. Journal of psychopharmacology, 25(1): 121-30. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/20829306?dopt=Abstract
Deutsch, DG. (2016). A Personal Retrospective: Elevating Anadamide (AEA) by Targeting Fatty Acid Amide Hydrolase (FAAH) and the Fatty Acid Binding Proteins (FABPs). Frontiers in Pharmacology, 7: 370. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/27790143
Elikotil, J et al. (2009). The Analgesic Potential of Cannabinoids. Journal of Opioid Management, 5(6): 341-57. Retrieved from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3728280/
Guindon, J and AG Hohmann. (2009). The endocannabinoid system and pain. CNS & Neurological Disorders Drug Targets, 8(6): 403-21. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/19839937
Hampson, AJ et al. (1998). Cannabidiol and (-)∆9-tetrahydrocannabinol are neuroprotective antioxidants. Proceedings of the National Academy of Sciences of the United States of America, 95(14): 8268-8273. Retrieved from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC20965/
Hsiao, Y-T et al. (2012). Effect of cannabidiol on sleep disruption induced by the repeated combination tests consisting of open field and elevated plus-maze in rates. Neuropharmacology, 62(1): 373-384. Retrieved from: http://www.sciencedirect.com/science/article/pii/S0028390811003467
Hortes n Chagas, M et al. (2013). Effects of acute systemic administration of cannabidiol on sleep-wake cycle in rats. Journal of Psychopharmacology, 27(3). Retrieved from: http://journals.sagepub.com/doi/abs/10.1177/0269881112474524
Huestis, MA (2007). Human Cannabinoid Pharmacokinetics. Chemistry & Biodiversity, 4(8): 1770-1804. Retrieved from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2689518/
Kwon, Diana (2016, January 22). Can Cannabis Treat Epileptic Seizures? Scientific American. Retrieved from: https://www.scientificamerican.com/article/can-cannabis-treat-epileptic-seizures/
Laprairie, RB (2015). Cannabidiol is a negative allosteric modulator of the cannabinoid CB1 receptor. British Journal of Pharmacology, 172(20): 4790-4805. Retrieved from: http://onlinelibrary.wiley.com/doi/10.1111/bph.13250/abstract
Leweke, FM (2012). Cannabidiol enhances anadamidesignaling and alleviates psychotic symptoms of schizophrenia. Translational Psychiatry, 2(3): e94. Retrieved from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3316151/
Mackie, K. (2008). Cannabinoid receptors: where they are and what they do. Journal of Neuroendocrinology, Suppl 1: 10-4. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/18426493
Mannucci, C et al. (2017). Neurological aspects of medical use of cannabidiol. CNS & Neurological Disorder Drug Targets. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/28412918
Massi, P. (2008). 5-Lipoxgenase and anadamide hydrolase (FAAH) mediate the antitumor activity of cannabidiol, a non-psychoactive cannabinoid. Journal of neurochemistry, 104(4): 1091-1100. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/18028339
McAllister, SD et al. (2015). The antitumor activity of plant-derived non-psychoactive cannabinoids. Journal of neuroimmune pharmacology, 10(2): 255-67. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/25916739
de Mello Schier, AR et al. (2014). Antidepressant-like and anxiolytic-like effects of cannabidiol: a chemical compound of Cannabis sativa. CNS & Neurological Disorders Drug Targets, 13(6): 953-960. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/24923339
Morgan, CJ et al. (2013). Cannabidiol reduces cigarette consumption in tobacco smokers: preliminary findings. Addictive behaviors, 38(9): 2433-6. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/23685330
Murillo-Rodriguez, E et al. (2014). Potential effects of cannabidiol as a wake-promoting agent. Current Neuropharmacology, 12(3): 269-272(4). Retrieved from: http://www.ingentaconnect.com/content/ben/cn/2014/00000012/00000003/art00006
Natural Medicines Therapeutic Research. Cannabidiol. (2017, April 3). Retrieved from: https://naturalmedicines.therapeuticresearch.com.
Pazos, MR et al. (2013). Mechanisms of cannabidiol protection in hypoxic-ischemic newborn pigs: role of 5HT(1A) and CB2 receptors. Neuropharmacology, 71: 282-91. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/23587650
Pertwee, RG (2005). Pharmacological actions of cannabinoids. Handbook of experimental pharmacology, (168): 1-51. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/16596770
Prud’homme, M et al. (2015). Cannabidiol as an intervention for addictive behaviors: a systematic review of the evidence. Substance abuse, 9: 33-8. Retrieved from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4444130/
Robson, PJ (2014). Therapeutic potential of cannabinoid medicines. Drug testing and analysis, 6(1-2): 24-30. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/24006213
Russo, E and GW Guy. (2006). A tale of two cannabinoids: The therapeutic rationale for combining tetrahydrocannabinol and cannabidiol. Medical hypotheses, 66(2)234-246. Retrieved from: http://www.sciencedirect.com/science/article/pii/S0306987705004317
Russo, EB (2008). Cannabinoids in the management of difficult to treat pain. Therapeutics and clinical risk management, 4(1): 245-259. Retrieved from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2503660/
Saito, VM et al. (2012). Cannabidiol modulation of neuroinflammatory disorders. Current neuropharmacology, 10(2): 159-66. Retrieved from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3386505/
Wolf, SA et al. (2010). Cannabinoid receptor CB1 mediates baseline and activity-reduced survival of new neurons in adult hippocampal neurogenesis. Cell communication and signaling: CCS, 8:12. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/20565726/
Zuardi, AW et al. (2006). Cannabidiol, a cannabis sativa constituent, as an antipsychotic drug. Brazilian journal of medical and biological research, 39(4): 421-9. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/16612464?dopt=Abstract
Zuardi, AW (1953). Effects of ipsapirone and cannabidiol on human experimental anxiety. Journal of psychopharmacology, 7(1 Suppl): 82-8. Retrieved from: https://www.ncbi.nlm.nih.gov/pubmed/22290374?dopt=Abstract