Featured Take
Win
John Cena
If you want bigger arms, you should focus on your triceps instead of your biceps
If you want bigger arms first, I would focus on triceps because they're a bigger, meatier muscle. And you probably will do, like, more pressing movement, so you'll get bigger everything kind of.
This is a standard anatomical fact in bodybuilding; the triceps brachii comprises about two-thirds of the upper arm's mass.

