Abstract

The purpose of this article is to present a model of well-being based on current research in neurobiology and psychology, integrated in an evolutionary perspective of the human mind. Briefly, the primary purpose of nervous systems is to direct an animal toward behavior should be conducive to survival and procreation, and as a rule of thumb this implies either approach or avoidance. While behavior originally was based on reflexes, in humans the brain contains a system of negative and positive affect. Although an array of functions has evolved that employ emotions in order to handle various pursuits, recent studies suggest that they converge on shared neural circuits involved in mood, that is, they converge on circuits designed to generate reward and punishment. Happiness can be construed as the net output of these brain modules. Neural circuits tend to gain in strength and influence upon frequent activation, which suggests a strategy for improving happiness and mental health: to avoid excessive stimulation of negative modules, to use cognitive interference to enhance the "turn off" function of these modules, and to exercise modules involved in positive feelings