Attention to office ergonomics and computer ergonomics is required to minimize the risk of repetitive strain injuries.
These links to office ergonomics and computer ergonomics websites provide important safety tips to avoid repetitive strain injuries. Good luck.
Harvard University RSI Action website
Guidelines from Apple Computer on avoiding repetitive strain injury
Hewlett-Packard Safety and Comfort Guide
Tips on avoiding eyestrain from Johns Hopkins
Keyboard shortcut keys explained and listed By using keyboard shortcuts more and the mouse less, your motions are more varied and less repetitive. This is a good thing.
Substituting keystrokes for mousing is even recommended by OSHA
Warning: Computer use without rest breaks can cause DVT DVT can be a serious, life threatening medical emergency. The American Heart Association estimates that approximately two million cases of deep vein thrombosis (DVT) occur each year in the United States, accounting for about 600,000 hospitalizations. Between 60,000 and 200,000 annual deaths are attributable to pulmonary embolism (PE), the primary complication of DVT.