Stronger arms after 40? A celebrity trainer explains how to do it right—no ego lifting, just smarter full-body training.

When it comes to building muscle, two principles are key: mechanical tension – the force generated through resistance – and progressive overload, the art of gradually increasing that load over time.

July 8, 2025. More for You ...

Bicep curls increase arm size and tone the arms making them the better exercise for aesthetic goals. Hammer curls target more ...

Bicep curls are easy to do wrong, which can lead to back pain. Learn the most common mistakes and how to fix them to do a bicep curl with dumbbells correctly.

One of the biceps’ main jobs is to turn the palm upward. Exercises like dumbbell curls with a twist (starting in a neutral ...

“Bicep curls are largely undertaken to increase strength and muscle size, while hammer curls increase thickness in your muscles and create an overall more aesthetically pleasing arm,” he says.

Bicep curls vs hammer curls: which is best for bigger biceps? If your goal is to purely beef up your biceps, then you can’t go wrong with the bicep curl.

Single arm bicep curl Perform the bicep curl, but with one arm at a time instead of curling both weights up together. Curl the right arm up first, then lower it down.