Contrary to popular opinion, the biceps aren't the biggest muscles in the arm; that honor goes to the triceps. So, if you want a toned set of arms, it pays to train these lesser-known muscles.
This workout from NASM-certified personal trainer Sydney Cummings Houdyshell is a great place to start, targeting your triceps and chest with minimal equipment (she only uses a yoga mat and a set of adjustable dumbbells).
