What is Psychiatry?
Author:
Jesse Hanson, Ph.D.
Co-Author:
Linda Armstrong
Reviewer:
Shivani Kharod, Ph.D.
Everyone faces moments when thoughts or feelings seem too heavy to carry alone. Psychiatry offers a safe place to untangle those experiences and lighten the load via diagnosis, therapy, plans, medications, and ongoing support. Exploring how stress, biology, and environmental factors shape thoughts and behavior, psychiatry blends medical science with human connection. Ultimately, this combination can help people build healthier lives, establish stronger relationships, and improve overall well-being.
Understanding Psychiatry
Psychiatry is a medical specialty that focuses on the prevention, diagnosis, and treatment of mental, emotional, and behavioral disorders. Unlike many other fields of medicine, psychiatry looks closely at the connection between the brain, body, and environment to understand how these forces shape mental health [1].
As a specialized type of physician with an MD (Doctor of Medicine) or DO (Doctor of Osteopathic Medicine) designation, psychiatrists typically offer a holistic approach to care. Often, it begins with a thorough assessment, moves into a personalized treatment plan, and continues with regular follow-ups to track progress and refine care [1].
Treatment plans often include combinations of medication, psychotherapy, lifestyle modifications, and social interventions. For example, someone with depression might benefit from antidepressant medication to address chemical imbalances, cognitive behavioral therapy (CBT) to improve negative thought patterns, and social support to enhance resilience. Highly tailored to each person, treatment methods can be mixed, matched, and adjusted over time to align with changing symptoms and personal priorities [1].
History of Psychiatry
To better understand modern psychiatry, it helps to explore its origins and evolution. Early approaches to mental illness often relied on speculation and limited knowledge, with treatments that were rarely effective. Over time, however, psychiatry evolved, and by the late 18th and early 19th centuries, physicians began to study mental illness more systematically [2].
During the mid-20th century, advances in neuroscience, psychology, and pharmacology had transformed psychiatric practice. Thus, treatments shifted away from confinement and experimental care and toward therapeutic interventions and medications designed to ease symptoms and improve quality of life [2].
Today, psychiatry continues to evolve as research has deepened knowledge of how the brain, body, and environment interact. What began as a limited effort to understand abnormal behavior has become a field focused on healing, resilience, and comprehensive care [2].
Psychiatry Subspecialties
Psychiatry has grown into a diverse field with multiple subspecialties, each focusing on specific patient populations, conditions, or treatment approaches. As such, these subspecialties maintain psychiatry’s whole-person focus while adding advanced tools, interprofessional collaboration, and system-specific knowledge that can make treatment more precise and practical. These branches also allow psychiatrists to apply their expertise in highly targeted ways, providing care that meets unique needs and complex challenges.
Addiction Psychiatry
Addiction psychiatry focuses on diagnosing and treating substance use disorders and co-occurring mental health conditions. Specialists in this field understand the biological, psychological, and social factors that contribute to addiction, and they use a combination of therapy, medications, and behavioral interventions to help people achieve long-term recovery. Unlike general psychiatrists, addiction psychiatrists often work closely with rehabilitation programs, community support services, and harm reduction initiatives to provide comprehensive care [3][4].
Child and Adolescent Psychiatry
Child and adolescent psychiatrists are trained to recognize developmental differences and unique stressors that affect younger populations. They provide therapy, guidance to families, and medication management when necessary. Their expertise often extends to school and community settings, supporting early intervention and promoting healthy development [3][4].
Clinical Neurophysiology
This subspeciality bridges the gap between psychiatry and neurology, emphasizing the biological foundations of mental health. Psychiatrists in this area may use tools like brain stimulation therapies or electroencephalography (EEG) to better understand and treat conditions such as epilepsy, depression, and movement disorders [3][4].
Consultation-Liaison Psychiatry
Consultation-liaison psychiatrists work at the intersection of physical and mental health. They typically provide psychiatric care to people who are hospitalized for medical conditions, helping manage emotional or behavioral complications that arise alongside physical illnesses. These specialists work closely with medical teams to ensure that mental health considerations are integrated into patient care [3][4].
Forensic Psychiatry
Forensic psychiatrists apply psychiatric expertise to legal and criminal contexts. They may evaluate competency to stand trial, provide expert testimony, or assess risk in criminal and civil cases. This subspecialty blends medicine, law, and ethics, addressing the unique challenges that arise when mental health intersects with legal proceedings [3][4].
Psychiatry vs. Psychology
To fully grasp psychiatry’s unique role in mental health care, one must understand how psychiatry differs from psychology. While psychiatry and psychology both focus on mental health, they differ in terms of scope, professional training, and the type of care they provide.
Psychiatry is a branch of medicine. Thus, psychiatrists are physicians who complete medical school, undergo residency training, and hold licenses that allow them to prescribe medications and perform medical evaluations. Their role often combines diagnosing conditions, prescribing treatments, and offering psychotherapy [5].
Psychologists, on the other hand, typically hold doctoral degrees in psychology rather than medical degrees, and their training emphasizes psychological theory, research, and therapeutic techniques. As such, many psychologists provide talk therapy, conduct psychological testing, and help people develop coping strategies, but they generally can’t prescribe medications [5].
Despite these differences, the two professions often complement each other. A person managing depression, for example, may work with a psychiatrist for medication and a psychologist for therapy to address both the biological and psychological aspects of mental health.
What Do Psychiatrists Do?
While a broad understanding of psychiatry is helpful, it’s important to explore the key tasks that define the psychiatrist’s role. Key services many psychiatrists provide include [1]:
- Diagnosis: Psychiatrists carefully assess symptoms, medical history, and lifestyle factors to identify mental health conditions. The mental health assessment process often involves detailed conversations and structured evaluations, and sometimes, lab tests may be used to rule out physical causes.
- Psychotherapy: Many psychiatrists offer talk therapy, which helps people explore their thoughts and emotions, recognize unhelpful patterns, and develop healthier coping skills. Psychotherapy can be short-term to address specific issues or long-term to work through deeper challenges such as trauma, relationship struggles, and chronic stress.
- Medication Management: Psychiatrists are licensed to prescribe medications that target the biological aspects of mental health conditions. However, they not only write prescriptions but also monitor how well medications are working and adjust dosages when needed.
- Specialized Treatments: In addition to traditional therapy and medications, psychiatrists may provide advanced treatments such as electroconvulsive therapy (ECT), light therapy, vagus nerve stimulation (VNS), deep brain stimulation (DBS), or transcranial magnetic stimulation (TMS). These interventional therapies are typically used when other approaches have not provided enough symptom relief.
Given their wide range of services, psychiatrists often work in various settings. They may practice in private offices, nursing homes, and psychiatric and general hospitals. Alternatively, they may hold roles within rehabilitation programs, government agencies, the justice system, the military, and other organizations.
How Psychiatrists Work With Others
Since psychiatry touches multiple settings and aspects of mental health, psychiatrists often work hand in hand with other cognitive and physical health specialists rather than in isolation. In fact, psychiatrists regularly function as part of integrated healthcare teams, collaborating with various professionals to deliver comprehensive care that addresses the full spectrum of patient needs.
Within these collaborative structures, psychiatrists regularly serve as medical experts on mental health and provide diagnostic evaluations, medication management, and treatment planning. In turn, they work closely with clinical psychologists who conduct psychological testing and deliver various forms of psychotherapy. Social workers may also play a role in the psychiatric care team by addressing social determinants of health, connecting patients with community resources, and providing counseling services.
This collaborative approach combining behavioral health services with general medical care can enhance patient outcomes, reduce costs, and limit the stigma associated with mental health issues. In fact, extensive research conducted over the last 30 years has shown that these types of collaborative care models are particularly effective and efficient approaches for delivering integrated care [6].
Psychiatric Medications
As a primary tool in psychiatric care, psychiatric medications are used to treat a host of mental health conditions. While the medication type and dosage are highly tailored to personal needs, these medications target brain chemistry to reduce symptoms, stabilize mood, and improve functioning [7].
Common types of psychiatric medications include [7]:
- Anti-Anxiety Medications: Designed to reduce symptoms of anxiety, these medications (aka anxiolytics) can be used for short-term relief of acute stress or for longer-term management of chronic anxiety disorders.
- Antidepressants: Antidepressants such as selective serotonin reuptake inhibitors (SSRIs) and serotonin and norepinephrine reuptake inhibitors (SNRIs) treat depression and anxiety disorders by balancing neurotransmitters such as serotonin and norepinephrine. They often require several weeks to reach full effectiveness.
- Antipsychotics: Prescribed for conditions such as schizophrenia or bipolar disorder, antipsychotics help manage hallucinations, delusions, and severe mood disturbances.
- Mood Stabilizers: Often used for bipolar disorder, mood stabilizers help prevent extreme mood swings and maintain emotional balance. They may be used in combination with other medications and require regular monitoring to ensure their safety.
- Stimulants: Often prescribed for attention-deficit/hyperactivity disorder (ADHD), stimulants enhance focus and impulse control. They are closely monitored to balance therapeutic benefits with potential side effects.
Medications are often most effective when combined with psychotherapy and support from a broader care team, creating a comprehensive approach to mental health management.
Psychiatric Psychotherapy
Psychiatrists often provide psychotherapy as part of a comprehensive treatment plan, blending medical expertise with therapeutic support. Several types of psychotherapy are commonly offered, each tailored to different needs and conditions [1]:
- Cognitive Behavioral Therapy (CBT): CBT helps people recognize distortions in thinking and develop strategies to challenge and modify negative thoughts, making it particularly effective for depression, anxiety, post-traumatic stress disorder (PTSD), and eating disorders.
- Dialectical Behavior Therapy (DBT): Originally developed for borderline personality disorder, DBT combines standard cognitive techniques with mindfulness practices. It focuses on emotional regulation, distress tolerance, interpersonal effectiveness, and mindfulness skills.
- Interpersonal Therapy (IPT): Focused on relationships and social functioning, IPT helps people improve communication, resolve conflicts, and navigate life transitions.
- Psychodynamic Therapy: This therapy explores unconscious patterns, past experiences, and emotional conflicts that influence current behavior. By gaining insight into these dynamics, people can better understand themselves and develop healthier ways of coping.
- Family or Couples Therapy: Psychiatrists may work with families or couples to address relational issues that impact mental health. This approach helps improve communication, reduce conflict, and create a supportive environment for recovery.
Psychotherapy is not a one-size-fits-all approach, as what works well for one person may not be nearly as effective for another. Therefore, many psychiatrists are trained in multiple therapeutic approaches and can tailor treatment to each person’s specific needs, preferences, and circumstances.
Mixing Medicine, Therapy, and Compassion
Psychiatrists bring a unique blend of medical knowledge, therapeutic skill, and empathy to mental health care. Their role includes diagnosing complex conditions, providing medication, and offering psychotherapy, while also coordinating with a broader team of professionals to address the full spectrum of needs.
Through specialized approaches and subspecialties, psychiatry meets people where they are, offering support tailored to personal challenges. After all, mental health care is a journey, and with the proper guidance, recovery and improved quality of life are possible.
- American Psychiatric Association. (2023, January). What is psychiatry? American Psychiatric Association. https://www.psychiatry.org/patients-families/what-is-psychiatry.
- Lomax, J.W. (2025, September 13). Psychiatry. Britannica. https://www.britannica.com/science/psychiatry.
- American Board of Psychiatry and Neurology. (n.d.). Psychiatry. American Board of Psychiatry and Neurology. https://www.abms.org/board/american-board-of-psychiatry-neurology.
- Trivedi J.K., Goel D. What psychiatry means to us. Mens Sana Monogr. 2006 Jan;4(1):166-83. doi: 10.4103/0973-1229.27613. PMID: 22013340; PMCID: PMC3190449. https://pmc.ncbi.nlm.nih.gov/articles/PMC3190449.
- Sievert. D. (2023, May 22.) Psychologist vs. psychiatrist: What is the difference? Medical expert interview. UCLA David Geffen School of Medicine. https://medschool.ucla.edu/news-article/psychologist-vs-psychiatrist-what-is-the-difference.
- American Psychiatric Association. (2023, January). Learn about the collaborative care model. American Psychiatric Association. https://www.psychiatry.org/psychiatrists/practice/professional-interests/collaborative-care/learn.
- National Institute of Mental Health. (2023, December). Mental health medications. National Institute of Mental Health. https://www.nimh.nih.gov/health/topics/mental-health-mePsychidications.
The Clinical Affairs Team at MentalHealth.com is a dedicated group of medical professionals with diverse and extensive clinical experience. They actively contribute to the development of content, products, and services, and meticulously review all medical material before publication to ensure accuracy and alignment with current research and conversations in mental health. For more information, please visit the Editorial Policy.
MentalHealth.com is a health technology company guiding people towards self-understanding and connection. The platform provides reliable resources, accessible services, and nurturing communities. Its purpose is to educate, support, and empower people in their pursuit of well-being.
Jesse Hanson, Ph.D., is a somatic psychologist with more than 20 years of experience in clinical psychology and neuropsychology.
Shivani Kharod, Ph.D. is a medical reviewer with over 10 years of experience in delivering scientifically accurate health content.
The Clinical Affairs Team at MentalHealth.com is a dedicated group of medical professionals with diverse and extensive clinical experience. They actively contribute to the development of content, products, and services, and meticulously review all medical material before publication to ensure accuracy and alignment with current research and conversations in mental health. For more information, please visit the Editorial Policy.
MentalHealth.com is a health technology company guiding people towards self-understanding and connection. The platform provides reliable resources, accessible services, and nurturing communities. Its purpose is to educate, support, and empower people in their pursuit of well-being.