Serotonin hypothesis of depression
The "serotonin hypothesis" (or theory) of depression is a specific case of the more general "chemical imbalance theory" of depression. Here are articles that discuss the ways in which these theories are inaccurate ways of thinking about what causes depression which can have implications for how people think about treating depression.
Spiegel, A. (2012). When It Comes To Depression, Serotonin Isn't The Whole Story. NPR - Morning Edition https://www.npr.org/sections/health-shots/2012/01/23/145525853/when-it-comes-to-depression-serotonin-isnt-the-whole-story
Lacasse, J. R., & Leo, J. (2015). Antidepressants and the chemical imbalance theory of depression: A reflection and update on the discourse. the Behavior Therapist, 38 (7), 206–213. http://www.illawarraanxietyclinic.com.au/uploads/7/6/0/4/7604142/lacasse___leo_tbt.pdf
Leo, J., Lacasse, J.R. The Media and the Chemical Imbalance Theory of Depression. Soc 45, 35–45 (2008). https://doi.org/10.1007/s12115-007-9047-3 https://link.springer.com/article/10.1007/s12115-007-9047-3
Lacasse J. R., Leo, J. (2005). Serotonin and Depression: A Disconnect between the Advertisements and the Scientific Literature. PLoS Med 2 (12): e392. https://doi.org/10.1371/journal.pmed.0020392
France, C. M., Lysaker, P. H., & Ryan P. Robinson, R. P. (2007). The Chemical Imbalance Explanation for Depression: Origins, Lay Endorsement, and Clinical Implications. Professional Psychology: Research and Practice, 2007, 38:4, 411–420. http://www.brown.uk.com/diagnosis/france.pdf
Cowen, P. J., & Browning, M. (2015). What has serotonin to do with depression?. World psychiatry: official journal of the World Psychiatric Association (WPA), 14(2), 158–160. https://doi.org/10.1002/wps.20229
Rottenberg, J. (2005). The Serotonin Theory of Depression Is Collapsing. Psychology Today. https://www.psychologytoday.com/us/blog/charting-the-depths/201007/the-serotonin-theory-depression-is-collapsing
Is the low-serotonin theory of depression wrong? (Science of Psychotherapy). https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4471964/
https://openexcellence.org/disproven-chemical-imbalance-theory-leads-to-worse-depression-outcomes/
https://chriskresser.com/the-chemical-imbalance-myth/
https://www.theguardian.com/science/blog/2010/sep/28/depression-serotonin-neurogenesis
https://www.scientificamerican.com/article/is-depression-just-bad-chemistry/