Part 1 of Essay
Often we take our , or the absence of illness, disease, or injury for granted until we become sick. It is then that we recognize the worth of being without ailments. It is then that we appreciate feeling strong, robust and y. Being y and, being physically and mentally sound, is associated with one's satisfaction with ....

Part 2 of Essay
.... the nature and origin of age-related diseases. They are also concerned with describing the effects of health on behavior and describing the effects of behavior on health. The goals of these specialists are: prevention of diseases, preservation of health, and improved quality of health for those suffering from disability and disease. What does it mean to be healthy? Health is a state of complete physical , mental, and social well-being and not merely the absence of disease, illness or infirmity. It is imp ....