Psychiatry focuses on the diagnosis, treatment, and prevention of mental, emotional, and behavioral disorders. It examines how biological factors, brain chemistry, life experiences, and social environments shape mental health across the lifespan. The field encompasses conditions such as depression, anxiety disorders, bipolar disorder, schizophrenia, trauma-related disorders, and personality and neurodevelopmental conditions. Integrating neuroscience, psychology, pharmacology, and psychotherapy, psychiatry aims to relieve suffering, improve functioning, and support long-term well-being through evidence-based therapeutic and medical interventions.