Mood regulation refers to the psychological processes involved in managing and controlling one's emotions and mood states. This research area focuses on understanding how individuals regulate their emotions, cope with stress, and maintain a stable and healthy emotional state. Researchers in this field explore various strategies and mechanisms that people use to regulate their moods, such as cognitive reappraisal, emotional expression, social support, and mindfulness. The ultimate goal of studying mood regulation is to help individuals develop effective strategies for managing their emotions and improving their overall well-being.