In this report I will be looking at the problem behaviour of obesity and describing the creation and introduction of a community-based program for behaviour change in the Jamaican population. This program will be a primary level prevention approach and will be called the 'No Gain No Pain' program, focusing on diet and physical activity. First I will give an introduction to the problem of obesity worldwide, then a literature review will follow focusing on diet and physical activity and the health risks of obesity. Next will be the description, introduction and evaluation of the program. For the purposes of this report obesity will be defined as an excessively high amount of body fat in relation to lean body mass measured in terms of a person's Body Mass Index (BMI). A BMI of 30 and over is considered obese. It must be noted that much of the information presented in this report will be cited from sources outside of Jamaica due to lack of, or insufficient information on this topic.
             The World Health Organization (W.H.O.) 2002 World Health Report, lists the ten leading selected risk factors as percentage causes of disease burdens measured in disability- adjusted life years for high- and low- mortality developing countries and for developed countries. Obesity was listed the fifth most serious risk factor for developed and low- mortality developing countries. Increasing obesity level and the attendant increased risk of noncommunicable diseases are now global problems.
             Obesity was thought to be a problem limited to developing countries, yet in the United States Of America (U.S.A.) 65% of adults are overweight and nearly a quarter of those are obese. Amongst blacks in America some 68% of black women and 57% of black men twenty years and over are overweight or obese. In Canada, Australia, and Europe obesity levels have risen dramatically. England has seen a doubling to almost 16% between 1980 and 1990 and it continues to...