In this article, we argue that emotion regulation is an essential (and traditionally underemphasized) feature of mental health. To develop this idea, we first define the terms emotion, emotion ngulation, and mental health. We then chart the development of emotion regulation and describe its role in various facets of normal functioning. Next, we consider what happens when emotion becomes dysregulated in a major depressive episode. We suggest that an emotion regulat o y perspective integrates diverse theoretical views of depression and has implications for the assessment, treatment, and prevention of depression. We conclude by speculating about the role of emotion regulation in the broader context of public mental health.

The past decade has witnessed a resurgence of interest in behavioral interventions for depression. This contemporary work is grounded in the work of Lewinsohn and colleagues, which laid a foundation for future clinical practice and science. This review thus summarizes the origins of a behavioral model of depression and the behavioral activation (BA) approach to the treatment and prevention of depression. We highlight the formative initial work by Lewinsohn and colleagues, the evolution of this work, and related contemporary research initiatives, such as that led by Jacobson and colleagues. We examine the diverse ways in which BA has been investigated over time and its emerging application to a broad range of populations and problems. We close with reflections on important directions for future inquiry.

Nortriptyline is a promising adjunct for smoking cessation. Smokers with a history of depression are aided by more intensive psychosocial treatments. Mood and diagnosis interact to predict relapse. Increases in negative affect after quitting smoking are attenuated by nortriptyline.

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