Obesity and being overweight is the fastest-growing epidemic in the United States. Obesity is now considered a disease by the medical community and is the cause of many other diseases in the body. Diseases are best treated by physicians, especially those that are certified in obesity medicine. The latest statistics reveal that over 75%- three of every four of us- are overweight or obese. Being overweight (BMI over 27) has a 50% chance of reducing your life expectancy. Being obese (BMI over 30) has a 100% chance of reducing your life expectancy.