Apple Macintosh PowerBook 145 - Manual (Page 45)

General suggestions
m Wherever you’re working, take a moment to think about
whether you feel comfortable, and change position if
necessary.
m Occasionally rest your eyes. From time to time focus your eyes
on a distant object, and blink often while you work.
m Some computer users may develop discomfort in their arms,
wrists, or hands if they do intensive work without breaks. If
you begin to develop chronic pain or discomfort in your arms,
wrists, or hands, consult your health specialist.
Chapter 1: Setting Up Your Macintosh PowerBook 29