Human Health can be described as a state of complete physical, mental, and social wellbeing and not merely the absence of disease or infirmity. The health of a whole community or population is reflected in measurements of disease incidence and prevalence, age-specific death rates, and life expectancy. Constituents of well-being are the experiential aspects of well-being, such as health, happiness, and freedom to be and do, and, more broadly, basic liberties. Determinants of well-being are inputs into the production of wellbeing, such as food, clothing, potable water, and access to knowledge and information.