Environmental Factors. Environment includes lifestyle behaviors such as what a person eats and how active he or she is. Americans tend to have high-fat diets often-putting taste and convenience ahead of nutritional content when choosing change their genetic makeup, but they can change what they eat and how active they are. The most likely environmental factor contributing to the current obesity epidemic is a continued decline in daily energy expenditure that has not been matched by an equivalent reduction in energy intake.( 8)Therefore, increasing physical activity may be the strategy of choice for public health efforts to prevent Psychological Factors. Many people eat in response to negative emotions such as boredom, sadness, or anger. Which can cause excessive eating patterns and harmful binging In 1990 the United States, set an ambitious national health objective for the year 2000:to reduce the prevalence of obesity to less than 20%. The persistence and growth from 14.5% to 22. 3%, rather than declining has now left a new proposed objective for the year 2010.(6) If weight gain prevention is to be successful, changes must be made at the dividual, community, and policy levels. Primary prevention of obesity must include environmental strategies that address the many societal factors that influence energy imbalance, specifically diet and physical activity. The effects of physical activity on health are well established Despite the fallacious myth that television will damage your eyes; it may be in actuality harming childrens health, by making kids fat. Nielsen Media Research indicated that children typically spend nearly four hours a day in front of the television set. (1)Thats almost two months of non-stop tv per year. Aside from sleeping, they re watching television or playing video games more than any other single activity in their lives. And the more they watch, the more obese they get. (1) 6