Answers are grounded in this paper and cite their sources.
People with major depression who were current smokers or had low levels of mastery were at an increased risk of repeated episodes of depression. Future studies are needed to confirm the predictive value of these variables and to evaluate their accuracy for diagnosis and as a guide to treatment.
No takes yet. Share an insight, caveat, or question.
Colman et al. (2011) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: