Explain about the Weight Imbalance?

You are aware that obesity is one of the major public health problems of the world, Earlier a problem of the developed nations; it is now increasingly afflicting our country. Maintenance of a fairly constant body weight is of vital importance in increasing the life expectancy, as well as, quality of life of individuals and communities. It is a fact that exaggerated weight fluctuations on either side (underweight or overweight) of a desirable range of weight lead to an increase in the morbidity/mortality rate.