I believe that your answer should be the set point. The set point is the term for the narrow range of usual levels of weight which the human body defends to maintain.
The first step involved in recognizing a health problem is to seek the help of a medical professional. Seeking the help of these trained professionals would help the person become educated about the severity of the health problem and the different way/s that it can be managed or further progressed into more complicated health risks.
As soon as a person seeks the help of a professional, this means that he/she is accepting that there is something wrong with his/her health. Acceptance is the best way to start solving health concerns because the step-by-step process of solution and commitment will arise from there.
I believe the answer is obesity.
I believe the answer to that is a heart disorder.