You could (should?) switch to a trackpad or vertical mouse and/or get one of those timer apps to remind you to stop and stretch regularly. The basic idea of erg

You could (should?) switch to a trackpad or vertical mouse and/or get one of those timer apps to remind you to stop and stretch regularly. The basic idea of ergonomics is that your aren't bending your wrist or neck and that your chair doesn't impinge on your arms. If you have arms on your chair lower them or switch chairs, and make sure that you are looking straight into your screen. It would probably be better if you get an ergonomic eval. If you don't work for an organization that has that available it's probably worth it to pay for the service yourself. Also you probably should check with your doctor if you can afford it.