INCREASES METABOLISM: It adds energy to your lungs, boosts your metabolism, dramatically reduces your appetite and has three adjustable workout levels. WHAT IT DOES: The Abdominal Breathing Trainer is a revolutionary breathing and abdominal fitness training product that will slim your waist and abdomen. BUILDING LUNG RESISTANCE: This trainer is intended for diaphragmatic training to help you fully utilize and tone the abdominal muscles while breathing. TIGHTEN YOUR ABDOMEN: The rebreather not only allows you to burn fat, it also tightens and tones your midsection and trains the deep abdominal muscles, obliques and transverse abdominis. FAT BURN: This trainer can help you help burn your fat, it trains you to breathe using your abdominal muscles, which helps burn fat and flatten your abs.