What are the best exercises to help gain definition between the

What are the best exercises for bicep growth? - Quora

How often can you do preacher curls without hurting your shoulders? - Quora

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What are the best exercises to help gain definition between the bicep and shoulder? - Quora

Push-ups are too strenuous. What is a better bicep exercise? - Quora

I have been working out a long time now but I find my biceps are still flat and stiff. What could be the reason? - Quora

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Can you increase how wide your arm is, or the thickness of your arm, by lifting weights? Would dumbbells and maybe barbells be enough? - Quora

Will lifting anything up make my arms get bigger? - Quora