The glory of Ayurveda lies in its evo lution of theory for maintenance of health. Centuries have passed by; the nature disease perhaps has changed, new diseases have appeared and some of the old one almost extinct. But Ayurvedic  theory of maintenance of health stands for all times and circumstances justifying ancient needs and catering for the future. This theory of maintenance of positive health that is known as  “Swasthvritta”.

In today’s fast life, diseases like respiratory tract disorders, lifestyle disorders like obesity, diabetes are mounting in everyday and are burning challenge for the medical system in the current scenario. Immunological status is continuously being degraded with the passage of time and centuries. In addition, the environmental derangement in the form of various kinds of pollution is also on rise because of industrialization and urbanization individual to resist an infection i.e. invasion, multiplication and production of a disease by an organism. And this can be attained by getting proper nutrition, minimal exposure to pollutants, reducing stress in one’s life. And Ayurveda the science of life caters these need very effectively. Maintenance of a healthy life by one’s own ethical code of conduct is called Swastha vritta, which literally means the regime of abiding by one’s own nature. One who stands in the balanced status of one’s own self is called swastha. Being in this state is swasthya that is the state  of equilibrium of Dhatu. It raises the limit and standard of life; so as to enable man to fulfill his personal and social obligations perfectly. quantitative aspects of man not only in individual perspective but also in relation to social environment.

The word Swasthavritta is compounded from three words – Swa, Sth and Vritta contains a trinity of ideas, resembling the trinity of Dosas in Ayurveda. The three words represent in themselves the joint effort of all the Dosas in the body, when working in full co-operation and co-ordination with one another. The result of this concord of Dosha is health and happiness. Swasthavritta thus helps one to attain the goal of perpetual normal health and happiness. It represents stability or maintenance and it means “one who stands”. In Ayurveda it means one who is stable in carrying out his duties and attends the requirements of body i.e. A “Swastha” is one who enjoys normal life. Charaka has frequently used the term Prakrti, Swasthya, Sukha, Arogya, Dhatusamya as synonyms of health. He stresses that disorder is disequilibrium of Dhatus and their equilibrium is health. Health is known as happiness while disorder is unhappiness.