Ergonomics is the study of humans in their work environment. The part of it that matters to us is how it relates to keeping us healthy and safe and avoiding aches and pains and repetitive motion injuries. A comfortable writer is a productive writer, so don’t skimp on your office setup. Everyone is comfortable in slightly different positions. So, before we get into the “correct” ways to work, let’s look at some general advice that should always trump whatever specific advice you get if the two are in conflict. If it hurts, stop doing it. Seriously. A lot of people…