Watch This If You Still Have Skinnt Arms

Your upper arm is not one muscle. It grows in three directions, width, height and depth, and most skinny arms are missing at least one of them. Train all three and your arms have no choice but to grow. What you'll learn: The hidden muscle under your biceps that makes your arm look wider from the front How to curl so your biceps actually gets taller instead of just tired Why your triceps is two thirds of your upper arm, and the one exercise that trains its biggest head The full plan: three exercises, sets and reps, and the rule that keeps it working Timestamps: 0:00 Why skinny arms stay skinny 0:16 Part 1: Width (hammer curls) 0:52 Part 2: Height (dumbbell curls) 1:25 Part 3: Depth (overhead extensions) 2:11 The full plan