This Issue of obesity has enormous ramifications for health care providers dealing with Medical problems caused or exacerbated by obesity, and for the organizations including employers and governments covering the escalating cost of Health care. They all have to take steps in helping the public to come with life styles and Misperceptions that are fueling this public health issue. It is estimated that globally there are about one billion over weight adults and at least 300 million of these are obese. It is estimated to affect about 20-30% adults and 10-20% of children and adolescents in developing country. Prevalence of obesity worldwide is increasing, particularly in the developed nations of Northern Hemisphere such as United States, Canada, and most countries of Europe. Conservative estimates suggest as 250 million people (approximately 7% of estimated total world population) are obese and two to times more. The life style modification means is changes in the eating pattern and daily life style activity. The objective of the self- instructional module is to improve the knowledge among obese persons about life style modifications to prevent obesity and to increase the awareness in obese persons to prevent obesity.