Nursing integrates the art and science of caring and focuses on the protection, promotion, and optimization of health and human functioning; prevention of illness and injury; facilitation of healing; and alleviation of suffering through compassionate presence. Nursing is the diagnosis and treatment of human responses and advocacy in the care of individuals, families, groups, communities, and populations in recognition of the connection of all humanity.

Source: American Nursing Association, 2021
https://www.nursingworld.org/practice-policy/workforce/what-is-nursing

Allied health encompasses a broad group of health professionals who use scientific principles and evidence-based practice for the diagnosis, evaluation and treatment of acute and chronic diseases; promote disease prevention and wellness for optimum health, and apply administration and management skills to support health care systems in a variety of settings.

Source: The Association of Schools of Allied Health Professions, 2020
https://www.asahp.org/what-is-allied-health-copy

Behavioral health is a key component of overall health and refers to the topics of mental distress, mental health conditions, suicidal thoughts and behaviors, and substance use.
Behavioral Health professionals promote well-being by addressing factors at multiple levels, including promoting well-being, preventing mental distress, and providing access to treatments and services for mental health conditions.

Source: The U.S. Centers for Disease Control and Prevention, 2025
https://www.cdc.gov/mental-health/about/about-behavioral-health.html

The practice of medicine, as an advanced practitioner or physician, involves a combination of education, training, and clinical skills. Advanced practitioners have completed graduate level education and training, often specializing in a specific area of healthcare. Physicians have completed medical school, a residency program, and in some cases, additional fellowship training. They work collaboratively with other healthcare professionals to provide comprehensive patient care, and are licensed to diagnose, treat, and manage complex health conditions and prescribe medications.
Source: Ohio State University, 2023
https://health.osu.edu/health/general-health/what-is-an-advanced-practice-provide