The concept of health has evolved over centuries, reflecting changes in societies, cultural beliefs, and scientific advancements. The definition of health has moved beyond the mere absence of disease to encompass a holistic state of well-being. In this article, we will explore the historical development of the definition of health and the shifting understanding of what it means to be healthy.

    Ancient Beliefs and Early Notions of Health:

    In ancient times, health was often associated with ตรวจโรคติดต่อทางเพศสัมพันธ์, supernatural, or divine influences. Ancient civilizations, such as the Egyptians, Greeks, and Romans, believed that health was influenced by the balance of bodily fluids or humors. Illness was seen as a result of an imbalance in these humors, and treatments focused on restoring equilibrium through practices like herbal remedies, fasting, and rituals.

    Biomedical Model and Disease-Centered Approach:

    The biomedical model, which emerged during the 19th and 20th centuries, defined health primarily as the absence of disease or infirmity. This model, influenced by advancements in medical science, focused on diagnosing and treating specific diseases and ailments. Health was often viewed from a reductionist perspective, isolating physical symptoms from broader social and psychological factors.

    Holistic Approach and the WHO Definition:

    In 1948, the World Health Organization (WHO) introduced a groundbreaking definition of health that broadened the understanding of well-being. The WHO defined health as “a state of complete physical, mental, and social well-being and not merely the absence of disease or infirmity.” This holistic definition acknowledged the interconnectedness of physical, mental, and social aspects of health, emphasizing the importance of overall well-being.

    Expanded Notions of Health:

    Over time, the definition of health has continued to evolve, incorporating various dimensions of well-being. Health is no longer solely focused on physical health but encompasses mental, emotional, social, and even spiritual dimensions. It recognizes the importance of preventive measures, lifestyle choices, and the social determinants of health, such as access to education, employment, housing, and healthcare.

    The Rise of Health Promotion and Wellness:

    In recent decades, there has been a growing emphasis on health promotion and the proactive pursuit of wellness. Health promotion aims to empower individuals and communities to take control of their health through education, preventive measures, and lifestyle changes. It focuses on promoting positive behaviors, fostering resilience, and creating supportive environments for well-being.

    The Concept of Positive Health:

    In contemporary discussions, there is increasing recognition of the concept of positive health, which goes beyond the absence of illness to emphasize the presence of well-being. Positive health encompasses factors such as life satisfaction, meaning and purpose, resilience, and social connections. It acknowledges that health is a dynamic and subjective state influenced by individual experiences and perceptions.


    The definition of health has undergone a significant transformation over time. From ancient beliefs in supernatural influences to the biomedical model and the holistic approach of the WHO, the understanding of health has evolved to encompass multiple dimensions of well-being. Today, health is recognized as a multifaceted concept that includes physical, mental, and social dimensions, influenced by various factors. Embracing a holistic approach to health promotes proactive self-care, preventive measures, and the pursuit of overall well-being. As our understanding of health continues to evolve, it is important to recognize the interconnectedness of different aspects of well-being and strive for a balanced and comprehensive approach to maintaining and improving our health.