Understanding Obesity It's a myth that a lack of self-discipline causes obesity. Instead, the cause is usually underlying psychological and emotional issues. Obesity & Other Health Problems Obesity raises the risk for several other health problems, including diabetes, high blood pressure, and high cholesterol. Treating Obesity Obesity treatment is based on several factors, among them your age, overall health, and medical history. Deciding on Surgery Bariatric surgery is a serious procedure that will permanently change the way you eat. A smaller stomach will limit food portions, and it may be difficult to absorb important nutrients. Types of Surgery Gastric bypass and gastric stapling are the two main types of bariatric surgery. Each has its advantages and disadvantages.