1-20 Precautions for UseAdvice for Your HealthProlonged use of a computer may affect your health. Keep in mind thefollowing to reduce stresses on your body:Sit in a good postureSit on your chair with your back straight. If the desk height is appropriate,you will slightly look down at the screen and your forearms will be parallel tothe floor. This “good” work posture can minimize muscle tension caused bysedentary work.If you sit in a “bad” posture—for example, sit round-shouldered or with youface too close to the display—you may easily suffer fatigue or have youreyesight affected.Adjust the installation angle of DisplayMost types of displays allow you to adjust the angle vertically andhorizontally. This adjustment is very important to prevent the reflection oflight as well as to make the screen more comfortable to see. Without thisadjustment, it is difficult to maintain a “good” work posture and may get tiredsoon. Be sure to adjust the angle before using the display.Adjust Brightness and ContrastDisplays allow you to adjust brightness and contrast. Optimum brightnessand contrast vary depending on the individual, age, brightness of the room,etc; you need to make an adjustment accordingly. If the screen is too brightor too dark, it is bad for your eyes.Adjust the installation angle of KeyboardSome types of keyboards allow you to adjust the angle. If you adjust theangle to make the keyboard more comfortable to use, you can greatlyreduce stresses on your shoulders, arms, and fingers.Clean the EquipmentCleanliness of the equipment is very important not only for reasons ofappearance but also from the viewpoints of function and safety. Especially,you need to regularly clean the display, which gets unclear due to theaccumulation of dirt.Take a break when you get tiredIf you feel tired, you are recommended to refresh yourself by taking a shortbreak or doing a light exercise.
