Toshiba 4000 User Guide

39

Sit with your back straight so that your knees, hips, and 
elbows form approximately 90-degree angles when you work. 
Do not slump forward or lean back too far.

Proper lighting can improve the readability of the display and 
reduce eyestrain.

Position the display panel or external monitor so that sunlight 
or bright indoor lighting does not reflect off the screen. Use 
tinted windows or shades to reduce glare.

Avoid placing your computer in front of a bright light that 
shines directly into your eyes.

If possible, use soft, indirect lighting in your computer work 
area.

Avoid bending, arching, or twisting your wrists. Keep them in 
a relaxed, neutral position while typing.

Exercise your hands, wrists, and arms to improve circulation.

The key to avoiding discomfort or injury from strain is to vary 
your activities. If possible, schedule a variety of tasks into your 
working day. Finding ways to break up the routine can reduce 
stress and improve your efficiency.

Take frequent, short breaks to change position, stretch your 
muscles, and relieve your eyes. A break of two or three 
minutes every half hour is more effective than a long break 
after several hours.

Avoid performing repetitive activities for long periods. 
Intersperse such activities with other tasks.