Abstract
The World Health Organization’s definition of health describes a state of complete physical, mental, and social well-being, shifting the perception of disease from an accepted part of life to a deviation from an ideal of optimal wellness. This contrasts with the biomedical model, which defines health as merely the absence of disease, often overlooking psychological, societal, or environmental influences.
The definition of "disease" continues to present conceptual challenges within both societal discourse and clinical practice. Its boundaries are fluid, shaped over time by shifting cultural expectations of health, advances in diagnostic technologies, and complex socio-economic dynamics. Despite the emergence of various theoretical frameworks, ranging from statistical abnormality and functional impairment to social valuation and clinical categorization, a universally accepted definition has yet to be established.
Under the leadership of Robert F. Kennedy Jr. at the U.S. Department of Health and Human Services, the concept of disease is being reshaped to emphasize environmental factors, such as food additives and seed oils, over established biomedical causes. This shift challenges healthcare providers to integrate new frameworks into their practice while raising concerns about diverting focus from evidence-based medical interventions.
With global healthcare expenditures reaching US$9.8 trillion in 2021, accounting for one in every ten dollars of GDP, disease classification has substantial economic and societal implications. A universally applicable and holistic definition is necessary to guide healthcare providers, policymakers, and patients in navigating these evolving perspectives while ensuring the delivery of adequate medical care.