Much of the research on cannabis products has looked at the use of marijuana rather than at CBD oil as a standalone product.
Some studies have found that cannabis might help anxiety. Others suggest that having anxiety is a risk factor for recreational marijuana use, or that using marijuana can make a person more vulnerable to anxiety.
People interested in managing their anxiety with CBD oil should look exclusively at research on cannabidiol, not generalized studies of medical marijuana. Although there are fewer studies on cannabidiol specifically, the preliminary research is promising.
A small 2010 study found that cannabidiol could reduce symptoms of social anxiety in people with social anxiety disorder (SAD). Brain scans of participants revealed changes in blood flow to the regions of the brain linked to feelings of anxiety.
In this study, cannabidiol not only made participants feel better but also changed the way their brains responded to anxiety.
A 2011 study also found that cannabidiol could reduce social anxiety. For that study, researchers looked specifically at cannabidiol to treat anxiety associated with public speaking.
A 2015 analysis of previous studies concluded that CBD oil is a promising treatment for numerous forms of anxiety, including social anxiety disorder, panic disorder, obsessive-compulsive disorder, generalized anxiety disorder, and post-traumatic stress disorder.
The report cautioned, however, that data on long-term use of CBD oil is limited. While research strongly points to the role of cannabidiol in treating short-term anxiety, little is known about its long-term effects, or how it can be used as a prolonged treatment.
A 2016 case study explored whether cannabidiol could reduce symptoms of post-traumatic stress disorder (PTSD) and anxiety-provoked sleep disorder in a child with a history of trauma. Researchers found that cannabidiol reduced the child's anxiety and helped her sleep.
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