Common mental health disorders include anxiety disorders, depression, bipolar disorder, schizophrenia, and obsessive-compulsive disorder (OCD). Anxiety disorders, which encompass generalized anxiety disorder, panic disorder, and social anxiety disorder, are characterized by excessive fear or worry. Depression is marked by persistent feelings of sadness and loss of interest in activities once enjoyed. Bipolar disorder involves extreme mood swings, including emotional highs (mania) and lows (depression). Schizophrenia is a severe disorder that affects how a person thinks, feels, and behaves, often leading to distorted perceptions of reality. OCD is characterized by unwanted repetitive thoughts (obsessions) and behaviors (compulsions). Each of these disorders can vary in severity and may require different treatment approaches.