If you think shoulder day is just like any other in the gym, you couldn't be more wrong. Your shoulder is a very special joint, and it deserves special treatment. Thanks to its placement, ball-and-socket structure, and freedom of movement, the shoulder is involved in just about every upper-body movement. As a result, it's subject to more wear and tear over time than probably any other joint in your body.
When training shoulders, you therefore have to consider exercises and techniques to build muscle and keep the joint healthy for the long haul. I'm all for advice that's geared toward growing your delts, but I'd be remiss if I didn't also help you minimize cumulative damage to the shoulder joint and rotator cuff along the way.