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Are you worried about not having a flat stomach? Would you like to be in shape, but you don't like to do sports? Suffer no more! Just by dedicating 1 minute of your day to the sit- up abdominal program you will get the perfect waist. Not only that, but you will also improve your posture and blood flow, gain physical strength and increase your respiratory capacity, which will be a piece of cake with the Slim Down Sit-Up exercises! To follow this simple, effective program suitable for everyone, you don't need any specific equipment or prior knowledge of sports - all you need is a chair! Follow the routine of Koichi Hoshino, the famous acupuncturist and chiropractor, and lose weight easily! Show more