Excessive body fat (obesity), leads to a number of health risks including an increased risk of premature death. Obese patients (BMI 30+) are estimated to have a 50-100 percent increased risk of death from all causes, when compared with people of normal weight (BMI 20-25). The risk of premature death increases significantly in cased of morbid obesity (BMI 40+). By the time the BMI is 40, the risk is close to 3 times as great, and super-obesity (BMI 50+). Most of the increased mortality rate from obesity is due to co-morbidities like atherosclerosis, heart attach or stroke. Other obesity related health conditions include diabetes, hyperinsulimia, insulin resistance, obstructive sleep apnea, shortness of breath, asthma attacks, gastroesophageal reflux disease, low back pain, arthritis, heartburn, urinary incontinence, and venous disorders.