Mental health, defined by the World Health Organization, is “a state of well-being in which the individual realizes his or her own abilities, can cope with the normal stresses of life, can work productively and fruitfully, and is able to make a contribution to his or her community”
Nutrition is the biochemical and physiological process by which an organism uses food to support its life. It includes ingestion, absorption, assimilation, biosynthesis, catabolism and excretion. The science that studies the physiological process of nutrition is called nutritional science. Wikipedia
hysical health. A person who has good physical health is likely to have bodily functions and processes working at their peak. This is not only due not only to an absence of disease. Regular exercise, balanced nutrition, and adequate rest all contribute to good health.