Psychiatric diseases, also known as mental disorders or mental illnesses, encompass a wide range of conditions that affect thoughts, emotions, behaviors, and overall mental well-being. These conditions can vary in severity and may include: Depressive Disorders: Such as major depressive disorder and bipolar disorder. Anxiety Disorders: Including generalized anxiety disorder, panic disorder, and phobias. Schizophrenia Spectrum Disorders: Characterized by disruptions in thinking, perception, and emotional responsiveness. Obsessive-Compulsive and Related Disorders: Involving persistent, unwanted thoughts and repetitive behaviors. Trauma and Stressor-Related Disorders: Such as post-traumatic stress disorder (PTSD). Neurodevelopmental Disorders: Including attention-deficit/hyperactivity disorder (ADHD) and autism spectrum disorder. Eating Disorders: Like anorexia nervosa and bulimia nervosa. Personality Disorders: Involving enduring patterns of behavior, cognition, and inner experience. Sleep-Wake Disorders: Such as insomnia and hypersomnia. Substance-Related and Addictive Disorders: Involving misuse of drugs or alcohol. It's important to note that psychiatric diseases are medical conditions, and effective treatment often involves a combination of medication, psychotherapy, and support services. Seeking professional help is crucial for accurate diagnosis and appropriate management.