Genetics plays a crucial role in bodybuilding. Having a smaller waist and wise clavicles would give you that illusion of being bigger, as well as your muscle shape and insertions. If you want to give that illusion of having a smaller waist then just gain more muscle in your shoulders working specifically on your side delts as well as working on your back, especially your lats. Lastly, you can’t change for example your chest shape, whether your chest attaches or is detached no matter how much muscle you gain it will never change.
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