Causes of Obesity
One of the most common misconceptions about body weight is that it is not a physiologically regulated variable, but one set by acquired food habits.
Scientists now know that there are a multitude of factors controlling ones body weight including but not limited to genetics, environment, emotional trauma, and activity level.
This is not to downplay the importance of a healthy and non excessive diet. Obesity is an imbalance of regulations between energy intake and energy expenditure. When intake is greater than expenditure, the body stores the excess energy in the form of fat.
Obese people regulate their intake and expenditure around an elevated set point.