These are my 7 keys to a healthy workstation. It is by no means an exhaustive list and others would prioritise other factors but implementing them has helped many people. 1. A good sitting position starts with foot position Ensure your feet are stable. Typically most of us do best with our feet flat on the floor.  Others do well with the toes raised above the ankle so that the feet can be more fixed requiring less muscular effort. It is key though that the feet are fully in contact with the floor and can accept the body weight. 2. The middle of the monitor should be level with your eyes Again...