Rumination is the process of continuously thinking about the same thoughts, often focusing on distressing issues or problems. This repetitive thinking can lead to increased anxiety and depression, as individuals may find it difficult to move past negative experiences or emotions. In psychology, rumination is often contrasted with problem-solving, where individuals actively seek solutions rather than dwelling on problems. It can affect mental health and well-being, making it important to recognize and address rumination to promote healthier coping strategies and emotional resilience.