The PROSPECT THEORY gives us language and framework that can help us to understand why it is important to concentrate more increases in healthy changes that we want rather than focusing on decreasing unhealthy changes .

The GROWTH MINDSET THEORY gives us language and framework that can help us to learn how to transform our way of thinking in a way that will benefit both our mental and physical health.

This model is used in health psychology to explain or predict a person's success or failure in achieving a proposed behavior change. It attempts to answer why the change became a habit or alternatively why the change was not made.

An individual’s belief system influences their decision making and the ability to maintain specific health behavior changes.