Over the years, I have worked extensively with screenwriters to help them get rid of their aches and pains stemming from poor posture, fatigue, long hours of typing and stress. Headaches, back, neck and shoulder pains, writer's cramp, as well as stiff hands can all be eliminated by following the steps I have outlined as the PET system.
PET stands for posture, exercise, and time management.
Learning some easy home tricks that you can use any time and any place will help you conquer your pain. If by chance these do not seem to work, I will teach you the SANE techniques, but more about that later. When you are at your workstation, you can use these posture tricks to help you eliminate headaches, neck pain, and carpal tunnel or wrist pains. Your chair should have a comfortable back with a bit of curve in it. A small towel rolled up into a tootsie roll or lumbar pillow for your mid to lower back is great.