# Lecture 1: What Is Medicine? What Is Health? Defining the Field
## Foundations of Medical Ethics and the Health Humanities
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## Learning Objectives
By the end of this lecture, students will be able to:
1. Articulate multiple definitions of medicine and critically evaluate their assumptions
2. Distinguish between biomedical, biopsychosocial, and holistic models of health
3. Explain the WHO definition of health and its strengths and limitations
4. Describe how cultural, historical, and social contexts shape our understanding of disease and wellness
5. Identify the scope and purpose of the health humanities as a discipline
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## Lecture Content
### I. Defining Medicine
Medicine can be understood through at least four complementary lenses, each of which captures something essential about the field while leaving other dimensions in shadow.
The first and most familiar lens sees medicine as a science -- the application of biological knowledge to diagnose, treat, and prevent disease. This view is rooted in empirical observation, hypothesis testing, and evidence-based practice, and its strengths include objectivity, reproducibility, and measurable outcomes. Yet a purely scientific view of medicine has its limitations: it can reduce patients to biological mechanisms and overlook the subjective experience of illness that often matters most to the person seeking care.
Medicine is also an art, involving the skillful application of knowledge in the context of individual patients. Clinical judgment, pattern recognition, and the intuition developed through years of experience all belong to this domain, as do communication, empathy, and the ability to navigate uncertainty. These are not peripheral skills but central to excellent medical practice.
Beyond science and art, medicine is a social practice -- a profession embedded in cultural, economic, and political systems. Physicians hold social authority and power, and this authority carries ethical obligations. The medicine practiced in a fee-for-service system looks and feels different from the medicine practiced under universal healthcare, reminding us that medicine is always shaped by the societies in which it operates.
Finally, medicine is a moral enterprise. Every clinical decision contains implicit value judgments. Who receives care, what counts as a disease, what outcomes are considered "good" -- these are fundamentally ethical questions. The physician-patient relationship is, at its core, a moral relationship built on trust.
A concept map with "Medicine" at the center, branching outward to four domains: "Science" (with sub-branches: empiricism, evidence-based practice, pathophysiology), "Art" (with sub-branches: clinical judgment, communication, empathy), "Social Practice" (with sub-branches: institutions, power, economics), and "Moral Enterprise" (with sub-branches: values, trust, obligation). Arrows between domains show interconnections.
### II. Defining Health
Just as medicine resists a single definition, so does health. The biomedical model defines health simply as the absence of disease or pathology. In this view, disease is understood as a deviation from normal biological functioning, an approach formalized in Christopher Boorse's "biostatistical theory." The biomedical model is clear, measurable, and scientifically grounded, but it ignores subjective suffering, mental health, social determinants, and the perspectives of people living with disabilities.
The World Health Organization offered a dramatically different definition in 1948: "Health is a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity." This was revolutionary for its time because it expanded health beyond biology. However, critics point out that "complete well-being" is essentially unattainable, that the definition risks medicalizing all aspects of life, and that it presents health as a static state rather than a dynamic process.
George Engel's biopsychosocial model, proposed in 1977, offered a more integrative alternative. According to this model, health and illness result from the interaction of biological, psychological, and social factors. A patient's experience of illness cannot be reduced to pathology alone, and treatment planning should reflect this holistic reality.
More recent formulations, such as the Meikirch model and the work of Huber and colleagues in 2011, define health as the ability to adapt and self-manage in the face of social, physical, and emotional challenges. These dynamic definitions emphasize resilience, capacity, and function rather than any fixed state of being.
It is also important to recognize that many Indigenous and non-Western traditions offer conceptions of health that emphasize balance, harmony, community, and spiritual well-being. Traditional Chinese Medicine centers the balance of qi, Ayurveda focuses on the balance of doshas, and many Indigenous frameworks foreground collective wellness. These perspectives remind us that the biomedical model is one cultural tradition among many, not the only legitimate way of understanding health.
A layered diagram showing three concentric circles representing the biopsychosocial model. The innermost circle is labeled "Biological" (with examples: genetics, physiology, pathogens). The middle circle is labeled "Psychological" (with examples: mood, coping, cognition, stress). The outermost circle is labeled "Social" (with examples: socioeconomic status, culture, relationships, environment). Arrows indicate bidirectional influence between all layers.
### III. Disease, Illness, and Sickness: Key Distinctions
Three related but distinct concepts help clarify how we think about being unwell. Disease refers to the biomedical entity -- an objectively identifiable pathological process diagnosed by the clinician based on signs, tests, and diagnostic criteria. Illness, by contrast, is the subjective experience of being unwell: how the patient feels, perceives, and lives with their condition. A person can have a disease without feeling ill, as in early-stage hypertension, or feel ill without any identifiable disease, as in many cases of medically unexplained symptoms.
Sickness is the social role assigned to a person who is unwell. Talcott Parsons described the "sick role" in 1951, noting that the sick person is exempt from normal duties but obligated to seek help and try to recover. Sickness is socially constructed and varies across cultures and time periods. Stigma, legitimacy, and access to resources all depend on whether a condition is recognized as "sickness" by the surrounding community.
### IV. What Are the Health Humanities?
The health humanities constitute an interdisciplinary field that uses the humanities and arts to explore the human dimensions of health, illness, and medicine. The disciplines involved include literature, philosophy, history, ethics, sociology, anthropology, visual arts, performing arts, and creative writing.
The health humanities matter for future physicians for several interconnected reasons. Engagement with patient narratives develops empathy and the capacity for perspective-taking. Critical analysis of the assumptions, power structures, and values embedded in medicine builds the kind of thinking that distinguishes a thoughtful clinician from a merely competent one. Reflective practice -- the ability to examine one's own biases, emotions, and moral commitments -- is cultivated through humanistic inquiry. And communication skills, including the capacity to listen deeply, are strengthened through these disciplines.
The field has evolved from "medical humanities" to "health humanities," a shift that signals important changes in perspective. The older term centered the physician's viewpoint, whereas "health humanities" is broader, encompassing patients, caregivers, communities, and public health. This evolution reflects a move away from medicine as the sole authority on health toward a more inclusive understanding that draws on many voices and forms of knowledge.
A Venn diagram with three overlapping circles. Circle 1: "Biomedical Sciences" (anatomy, physiology, pharmacology, pathology). Circle 2: "Social Sciences" (sociology, psychology, anthropology, public health). Circle 3: "Humanities and Arts" (philosophy, literature, history, visual arts, ethics). The central overlap region is labeled "Health Humanities" with a note: "Where scientific knowledge, social context, and human meaning-making converge."
### V. Why This Course Matters
Medical education contains a "hidden curriculum" -- the implicit lessons students absorb about hierarchy, detachment, and efficiency that often conflict with humanistic values. This course provides tools to recognize and resist the dehumanizing aspects of medical training.
Ethical reasoning should be understood as a clinical skill. Ethical dilemmas are not rare events but arise in everyday clinical practice. The goal of this course is not to memorize rules but to develop a framework for moral reasoning that can be applied flexibly to the situations students will encounter throughout their careers.
Finally, this course recognizes the physician as a whole person. Burnout, moral injury, and loss of meaning are significant problems in medicine today. Engagement with the humanities can sustain resilience, purpose, and professional identity, helping physicians maintain the sense of meaning that drew them to medicine in the first place.
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