The Pec Minor: The Small Chest Muscle That Might Be Messing With Your Training

If you’re a regular at the gym, you probably know about the pecs. Big bench press days, push-ups, cable flys — it’s all about working the chest. But did you know there’s a smaller muscle underneath your pec major that could be affecting your performance, posture, and even causing shoulder pain? It’s called the pectoralis …