2. Science of integrating efficiency, safety and comfort into the workspace design Physical relationship between people and their tools Very important Sickness Injuries

3. Computer Vision Syndrome Repetitive Stress injuries

4. Using computer for very long period of time headache, blurred vision, neck pain, dry or irritated eyes Short rest every hour Use an anti-glare screen Use a document holder

5. Keep doing the same action Typing words Click the mouse Short rest every hour Relaxing your muscles

6. Ergonomics mouse Rest the stress on hand Ergonomics chair Make the most comfortable pose of yourself Lower back Front arms Foot rest Take rest on it Reduce back, neck and leg get hurt Adjustable monitor View angle

7. Change computer about every 2-5years New model Change very short time Cause waste problems Monitors, mainboard Contain toxic materials (lead, mercury…… etc)

8. Extend the life span of your computer Some parts can be reuse Some can recycling Keep waste out of the landfill Conserve natural resources