Your Upper Chest Isn’t Growing Because You’re Pressing at the Wrong Angle

In May 2025, hypertrophy specialist Ryan Humiston challenged long-standing upper chest training norms, rooted in anatomy and biomechanics. I’ve looked through all the research surrounding the upper pec, and I’ve realized we’ve been training our chest wrong. —Ryan Humiston The chest (pectoralis major) has three sections:  Ryan Humiston’s Upper Chest Modifications Humiston critiqued the persistent belief that the clavicular head,…

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