Humors, or moods, refer to the emotional states that influence a person's thoughts and behaviors. Traditionally, the concept of humors originated from ancient medicine, where it was believed that four bodily fluids—blood, phlegm, black bile, and yellow bile—determined a person's temperament. Each humor was associated with specific emotional characteristics, such as cheerfulness or melancholy. In modern psychology, moods are understood as longer-lasting emotional states that can affect daily functioning. They can be influenced by various factors, including environment, stress, and biological changes. Recognizing and managing moods is essential for mental well-being and can improve overall quality of life.