yes, sit ups foucus on the stomach muscles.We learned this in health and science last week.But sit ups mainly foucus on lower abs. So try a variety of work outs.
No. Sit ups do not make your stomach smaller. They tone up the muscles in your abdominal region and help you develop a flat stomach. If this flat stomach is what you mean by making your stomach...
My favorite lower abs exercise is the reverse crunch. This will require you to get on your back, and make your back as flat as possible. Then simple and slowly pull your knees to your chest without...