That's especially true when it comes to training your big arm muscles with biceps curls. The biceps are not overly complicated muscles. They have two jobs: flex the elbow, and twist (supinate ...

We all want bigger arms and fitness coach Jeff Nippard is showing us how to make it happen using science. In a recent YouTube video shared on October 19, 2024, Nippard ranked 22 of the best and worst ...