Final answer:
The WHO defines health as a state of complete physical, mental, and social well-being. This definition underscores the multifaceted nature of health, encompassing the body, mind, and social circumstances. The WHO plays a key role in leading global health efforts, setting research agendas, and tracking health trends.
Step-by-step explanation:
World Health Organization Definition of Health
The World Health Organization (WHO), a specialized agency under the United Nations, provides a comprehensive definition of health. According to the WHO, health is "a state of complete physical, mental, and social well-being and not merely the absence of disease or infirmity." This holistic view emphasizes the importance of a person's overall well-being, which encompasses both physical and mental health aspects, as well as one's social environment. Additionally, WHO's role goes beyond defining health, as the organization leads on global health matters, informs the research agenda, and continuously monitors health-related trends and statistics worldwide.
When considering human health, we see that it relates to the state of body and mind that not only allows for survival but also enables successful reproduction and contributes to a full enjoyment of life. Parameters of health for humans can be gauged similarly to health for all living organisms: a physiological and behavioral state fit for longevity and progenitive success. In the case of animals, this definition is parallel but focuses on abilities like procuring resources, avoiding danger, and rearing offspring.
Factors contributing to health and illness span a broad spectrum including genetics, lifestyle, environmental factors, and access to healthcare. Maintaining one's health can involve a variety of practices ranging from dietary and exercise habits to mental health care and regular medical check-ups.