Bodybuilder's Concerns can be summarized as the physical and mental aspects of bodybuilding. ABS, which is a three letter acronym, stands for Abdominal Muscles, which are an important part of bodybuilding. Bodybuilders must focus on both their physical and mental health in order to achieve their goals. This includes proper nutrition, exercise, and rest. Additionally, bodybuilders must also be aware of their mental health, such as stress management and positive thinking.