“We wanted to answer two questions: does cannabis use lead to increased occurrence of mania symptoms or manic episodes in individuals with pre-existing bipolar disorder?”
“But also, does cannabis use increase the risk of onset of mania symptoms in those without pre-existing bipolar disorder?”
~Dr. Steve Marwaha, University of Warwick
According to a study published in the Journal of Affective Disorders, recent evidence indicates a strong relationship between marijuana use and the development of or worsening of mania symptoms. Scientists from the Warwick Medical School reviewed scientific literature concerning the effect of marijuana, sampling 2391 people with a history of manic symptoms.
Dr. Marwaha, the study’s lead author describes several conclusions:
- There is a “significant” link between marijuana use and the onset of a manic episode.
- Marijuana use precedes, rather than follows, mania symptoms.
- Marijuana worsens manic symptoms in people with bipolar disorder.
“…our review suggests that cannabis use is a major clinical problem occurring early in the evolving course of bipolar disorder,” Dr. Marwaha said.
In a separate 2015 study by researchers at Lancaster University in the United Kingdom, cannabis is linked to an increase in both manic and depressive symptoms.
The study discovered that the odds of using marijuana increase when people with a diagnosed bipolar disorder are in a good mood. Marijuana is also linked with an increase in symptoms of mania, and, paradoxically, an increase in depressive episodes – but NOT in the same individuals.
Dr. Elizabeth Tyler of the Spectrum Centre for Mental Health Research at Lancaster University, the lead author of the study, said, “We need to find out whether these relationships play out in the longer term, as this may have an impact on a person’s course of bipolar disorder.”
What Are Some Symptoms of Mania as Part of Bipolar Disorder?
Mania symptoms can include:
- Feelings of constant elation
- Increased energy
- Decreased need for sleep
- Auditory hallucinations
If you have a dual diagnosis of both an addictive and a mental health disorder, the professionals at Lasting Recovery outpatient drug and alcohol rehab in San Diego can help. By using evidence-based and wellness-focused treatment strategies, Lasting Recovery can help you regain your sobriety and your serenity.
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