Health of the people is the most important indicator of the development of a nation. Health is a state of complete physical, mental and social well being and not merely the absence of disease or infirmity (as defined by WHO). The state of health of an individual or population depends upon complex interaction of the physical, biological, political and social domains. The environment affects the human health in a big way. People tend to be most susceptible to illness when physically or mentally stressed. Stress, energy and immunity form a closely knit network. Through his experimental findings,...