WHO defines health as a state of complete physical, mental, & social well-being and not merely the absence of disease or infirmity. This definition has been subject to controversy, as it may have limited value for implementation. Health may be defined as the ability to adapt and manage physical, mental, and social challenges throughout life.
The word "health" refers to a state of complete emotional and physical well-being. Healthcare exists to help people maintain this optimal state of health.
The concept of health and wellbeing has significantly evolved with different definitions coming from varied sources over the matter of time. All the concepts revolving around health can be divided into two major categories, viz. historical and modern. A brief overview of these ideologies is given below along with some definitions from organizations like the World Health Organization.
