Health is a condition of mental, physical and emotional well-being where infirmity and disease are absent. It is the state when the person does not suffer from any disease or abnormality and remains healthy. It includes all the physical and mental aspects of a person from the physiological, biochemical, immunological, metabolic, somatic, psychological and social aspects. It also includes the care of the body and the prevention and cure for all diseases and the maintenance of health.
The development of the world has seen an improvement in the standard of living of the people living in developed countries and this has made them happier and physically better. This, in turn, has led to an increased level of productivity, higher levels of education, better health and a better employment outlook. In developed countries, the life expectancy has increased from around forty years in the age of forty-five to over seventy years in the age of sixty-nine. The height, weight and physical appearance has improved significantly as well.
Mental health is the sum of the three elements of physical well-being. They go hand in hand. Mental health, therefore, is vital for the proper functioning of the physical body and mind. Mental disorders are sometimes hard to diagnose and in the absence of a proper diagnosis, it may lead to an under-treated and undiagnosed illness. These conditions have a negative impact on the productivity of the people and in turn, lead to a reduction in the level of economic activity. The major cause of mental disorders is the effect of stress on the body caused by tension and anxiety.