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the claim

Cannabis reduces symptoms of depression and anxiety.

the verdict
CONTESTED PARTIAL
Recorded sources
2 sources for · 6 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that cannabis reduces symptoms of depression and anxiety?

Partly. Evidence is mixed and only partial: one naturalistic study reports medical cannabis users perceived roughly 50% reductions in depression and 58% in anxiety, and a PTSD review suggests possible anxiety benefit, but a reference source says evidence is lacking for depression and anxiety, and other studies link cannabis use to greater depression/anxiety symptoms.

Verdict: CONTESTED PARTIAL · 2 sources for, 6 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 2
Use of Medicinal Cannabis and Synthetic Cannabinoids in Post-Traumatic Stress Disorder (PTSD): A Systematic Review
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Use of Medicinal Cannabis and Synthetic Cannabinoids in Post-Traumatic Stress Disorder (PTSD): A Systematic Review. (n.d.). cir.nii.ac.jp. https://doi.org/10.3390/medicina55090525

Evidence against · 6
Cannabis
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Cannabis. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Cannabis

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More for · 1
A naturalistic examination of the perceived effects of cannabis on negative affect
2018
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A naturalistic examination of the perceived effects of cannabis on negative affect. (2018). doi.org. https://doi.org/10.1016/j.jad.2018.04.054

More against · 5
Parental Contributions and Separation Anxiety on Adolescents’ Cannabis Use
2015
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Parental Contributions and Separation Anxiety on Adolescents’ Cannabis Use. (2015). doi.org. https://doi.org/10.1097/jan.0000000000000059

The Influence of Cannabis Use Disorder on Post-Traumatic Stress Disorder Symptoms, Depression Symptoms, and Non-Suicidal Self-Injury among College Students
2024
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Blessing, A., Russell, P. D., DeBeer, B. B., Kimbrel, N. A., Meyer, E. C., & Morissette, S. B. (2024). The Influence of Cannabis Use Disorder on Post-Traumatic Stress Disorder Symptoms, Depression Symptoms, and Non-Suicidal Self-Injury among College Students. eric.ed.gov. https://doi.org/10.1080/07448481.2022.2155471

Associations between tobacco and cannabis use and anxiety and depression among adults in the United States: Findings from the COVID-19 citizen science study
2023
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Nguyen, N., Peyser, N. D., Olgin, J. E., Pletcher, M. J., Beatty, A. L., & Modrow, M. F. (2023). Associations between tobacco and cannabis use and anxiety and depression among adults in the United States: Findings from the COVID-19 citizen science study. doi.org. https://doi.org/10.1371/journal.pone.0289058

Abstract PO-125: Mental health symptoms during the COVID-19 pandemic among cancer survivors who endorse cannabis: Results from the COVID-19 cannabis health study
2022
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Abstract PO-125: Mental health symptoms during the COVID-19 pandemic among cancer survivors who endorse cannabis: Results from the COVID-19 cannabis health study. (2022). doi.org. https://doi.org/10.1158/1538-7755.disp21-po-125

Psychosocial and pharmacological treatments for cannabis use disorder and mental health comorbidities: a narrative review
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Psychosocial and pharmacological treatments for cannabis use disorder and mental health comorbidities: a narrative review. (n.d.). cir.nii.ac.jp. https://doi.org/10.1017/s0033291720005449

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