Abstract
In this work, it is shown that by incorporating smartphone-based health/behavior interventions, people can be made in-charge of their own lifestyles and small but incremental changes can be achieved in their behavior which could lead to the prevention of obesity and other chronic diseases. However, it is also shown that the success of this idea depends on building context-aware personalized health intervention systems that take into consideration multiple factors that influence an individual's lifestyle to provide tailored intervention plans for different individuals based on their health behavior and surrounding context. Such context-aware tailored intervention plans are the only way these systems can achieve long-term behavior change required for effective prevention of obesity and its related diseases.