大麻和抑郁症有什么联系？

我对大麻和抑郁症很好奇。大麻会导致抑郁症吗？

一些研究表明，吸食大麻者比不吸烟者更容易被诊断为抑郁症，尤其是经常或大量吸食大麻的人。但是，大麻并没有直接导致抑郁症。

引发抑郁症的基因、环境或其他因素也可能导致吸食大麻。一些抑郁症患者可能会使用大麻来摆脱抑郁症状。由于药物对感情和情绪的消沉作用，重度使用者可能会显得抑郁。

大麻和其他心理健康状况之间也有联系。对于有较高风险出现精神错乱的人，使用大麻可能会引发精神分裂症或脱离现实（精神错乱）。如果继续吸食大麻，已被诊断的精神病症状可能会加重。

还有一些证据表明，企图自杀的青少年比那些没有企图自杀的青少年更可能使用过大麻。与使用大麻和患有抑郁症一样，需要更多的研究来更好地理解这些关联。

最重要的是：使用大麻和抑郁症之间的关联比您所预期的更加密切，但是没有明确的证据表明大麻直接导致抑郁症。

With

Walsh Z, et al. Medical cannabis and mental health: A guided systematic review. Clinical Psychology Review. 2017;51:15.
Is there a link between marijuana use and psychiatric disorders? National Institute on Drug Abuse. https://www.drugabuse.gov/publications/research-reports/marijuana/there-link-between-marijuana-use-psychiatric-disorders. Accessed Nov. 6, 2018.
Danielsson A-K, et al. Cannabis use, depression and anxiety: A 3-year prospective population-based study. Journal of Affective Disorders. 2016;193:103.
Feingold D, et al. Cannabis use and the course and outcome of major depressive disorder: A population based longitudinal study. Psychiatry Research. 2017;251:225.
Shalit N, et al. The association between cannabis use and suicidality among men and women: A population-based longitudinal study. Journal of Affective Disorders. 2016;205:216.
Hser Y-I, et al. Reductions in cannabis use are associated with improvements in anxiety, depression, and sleep quality, but not quality of life. Journal of Substance Abuse Treatment. 2017;81:53.
Guttmannova K, et al. The association between regular marijuana use and adult mental health outcomes. Drug and Alcohol Dependence. 2017;179:109.
Dierker L, et al. Depression and marijuana use disorder symptoms among current marijuana users. Addictive Behaviors. 2018;78:161.

Dec. 04, 2018