How to work on computers
1. Palms straight
2. Palms parallel
3. Arm stretched at > 120 angle while operating mouse
4. Adequate leg room
5. Adjust heaight so that elbow is parallel to keyboard
6. Foot must be parallel to surface and touching fully to surface
7. 45 to 70 cm distance from screen
8. Vertical head and neck
9. Eyes glancing straight
10.
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My son has given me a chair which has stretchable arms. So while operating mouse, my koNee (English?)gets good rest. Very much comfortable.