The most important thing you’re ignoring: Ergonomics

Writing is a necessary part of your career. Whether your goal is to become a successful textbook author, gain tenure at your university, or publish various other types of scholarly works, you will have to make writing a large part of your life. Just as anyone who lifts weights, runs, or bikes knows, the proper form and equipment are necessary to avoid injury and stay on track with their training. These same principles are true for writers. To stay at peak performance level, that is to say, to stay writing (and comfortably) it is imperative that you have the proper ergonomics.