As millions of overweight Americans have already discovered, diets based on restricted calories and exercise are often doomed to fail. They are difficult to maintain, and many people end up feeling dissatisfied and hungry. Dr. Rivas's clinical research with obesity patients unveils that the underlying cause of obesity is a brain problem-a deficiency of key brain chemicals called neurotransmitters, such as norepinephrine, serotonin, and dopamine. These chemical "switches" are inherited and govern our hunger and how we gain and store fat. The good news is that you can "turn off" these hunger switches and achieve significant, healthy weight loss. In his remarkable program, Dr. Rivas shows you how to determine which kind of switch you have (there are four main types) by taking a simple quiz, and reveals how to turn off the switch with all-natural supplements safely and effectively. His findings have been widely accepted by a growing network of doctors who are achieving unprecedented success with thousands of their own patients. Read Less