How to Tighten and Flatten Your Stomach: A Powerful Exercise. How to Tighten and Flatten Your Stomach: A Powerful Exercise Are you looking for an effective exercise to tighten and flatten your lower belly. Look no further. In this article, we will discuss a powerful exercise that targets your abdominal muscles and helps you achieve a tighter and flatter appearance. . Are you looking for an effective exercise to tighten and flatten your lower belly. Look no further. In this article, we will discuss a powerful exercise that targets your abdominal muscles and helps you achieve a tighter and flatter ... [Read More]