Neuropsychiatry integrates principles of neurology and psychiatry to better understand the brain’s role in mental health disorders. This interdisciplinary field focuses on how neurological conditions, such as brain injury, epilepsy, and neurodegenerative diseases, contribute to psychiatric symptoms like depression, anxiety, and psychosis. Advances in neuropsychiatry have revealed that many psychiatric disorders have a neurobiological basis, involving neurotransmitter imbalances, structural brain abnormalities, or altered neural circuits. This has led to the development of more targeted treatments, such as neuromodulation therapies and cognitive rehabilitation, that aim to address both the psychiatric and neurological components of these conditions. The field continues to explore the complex interplay between the brain’s structure, function, and behavior, offering new insights into the diagnosis and treatment of disorders like schizophrenia, bipolar disorder, and post-traumatic stress disorder.