However, the question remains of how the environment has such an impact on health behavior and why it is largely unexplored. Health promotion works through people within a targeted population, an explicit understanding of individual behavior is required to formulate and evaluate intervention strategies. Bringing in concepts from various fields, the use of an activity based modeling approach for understanding and predicting, from the bottom up, how individuals interact with their environment and each other in space and time, and how their behaviors aggregate to population level health outcomes. Human behavior depends on the setting and environment in which they may be in, while some people tend to influence the environment by physical and activities. For instance, Adriano stated, “Physical activity is likely to be determined as a complex interplay between personal, interpersonal, and environmental factors”, which is true, as a part of the environment, people tend to behave in response to social and physical settings. In fact, everyone not only adapts to their physical or social environment but tend to make up some of the social environment of other people. However, there may be more forces afflicting both parties and environment. For example, organizations and businesses located within a certain area may influence where people travel, while institutions and governments tend to …show more content…
Overweight and obesity strongly depend on behavioral issues. This is because weight gain results when energy consumption exceeds energy expenditure for a prolonged period. Williams stated, “Regular physical activity has many health benefits, but in spite of the benefits many Americans are not sufficiently active”, this may be due to deficiency in nutrition and physical activity behaviors which may be identified as key factors. Somehow people have gradually changed their eating habits and turned to more sedentary lifestyles. While interdependencies between the two behaviors may exist, several contextual factors seem to have contributed to the rise of overweight and obesity. The fast food industry has been able to flourish in our modern society driven by consumption, convenience and marketing. At the same time, technological changes, such as workplace automation and the dominance of the car for personal travel, have substantially reduced the physical activity that was naturally embedded in daily life. Many more of such factors have gradually changed the environment in which people live, work and