Can Better Posture Make Your Arms Look Leaner? The Science of Shoulder Alignment, Arm Tone and Upper-Body Mobility
Arms can appear softer, heavier or less defined for many reasons, including body fat, muscle loss, skin changes and posture. Rounded shoulders do not directly create arm fat, but the way your shoulders and upper back are positioned can change how your arms hang and how defined they appear. Here is what actually helps.
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