Sleep apnea is a condition where you stop breathing for a few seconds while sleeping. This is a serious disease. Your risk increases if you are obese. It usually occurs when your throat muscles relax when you are fast asleep. At times your brain may not send the proper signals to the muscles that control breathing. But whatever the cause early treatment is necessary. According to a new study at University of Pennsylvania School of Medicine losing tongue fat may improve sleep apnea symptoms. Researchers say that losing weight is an effective treatment for obstructive sleep apnea but why exactly