Hook
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Your triceps is two-thirds of your arm. So why does the back of your arm look flat from the side? No matter how many pushdowns you do. Why does your arm look flat from the side? Look at how your arms actually move. Everything happens low and in front of you, reaching, carrying, pressing, pushing down and forward, all day. Your arms almost go overhead, decided of the shape of your arm. Long before you walked into a gym. Here's why your triceps has three heads. Two of them only work the elbow pushdown, and dip and press has been feeding those for years. The part that shows from the front, one head, the long head, is the one mass and full side. But it's built different. It runs up and the shoulder muscle. The muscle that crosses the shoulder blade. The one that stretches only stretches to full length when your arm goes overhead. But your arm is never there. Long asleep life. That's the answer. It. To wake it up, get the elbow up. That's the only position. Long full. Let's build it now. Lie flat, a dumbbell in each hand. Your point ceiling. Stay set. Down beside your head, then up, slightly out. The arms open a little wider at the top, stacking instead of stacking face. Elbows put forearms down beside your head, and up and wide. That wider path is what keeps the long head loaded the whole way.