Both positive and negative emotions correspond to physiological changes. This connection is mostly known through stress and the fight-flight response, however, all emotions including positive ones, have a physiological component to them . According to Antonovsky  any emotion whether positive or negative, maintained over time, represents a load to human organism if not acknowledged and handled somehow, such as by adequate expression. Therefore, emotion regulation is necessary for human homeostasis, that is physiological balance and feeling of wellbeing, and an important component in human self-regulation competence .