Psychological Disorders discusses several types of psychological disorders: - Abnormal behavior refers to actions, thoughts, or feelings that distress or harm oneself or others. Whether behavior is abnormal depends on its effects and an evaluation by a mental health professional. - Anxiety disorders are common, affecting 29% of Americans at some point. Specific types include panic disorder, which can cause sudden panic attacks without triggers. - Somatoform disorders involve physical symptoms that have psychological roots rather than physical causes. Conversion disorder is a rare type where symptoms like blindness or paralysis occur from psychological factors.