Move the lever to adjust the chair., r. - Make sure your feet are flat on the floor, Push your back against the back of the chair, Make sure your knees are a little lower than your hips, Check that your arms are at 90 degrees on the desk, Raise or lower the screen. The top should be level with your eyes., Your back should be straight. If you slouch your back will hurt., Use an ergonomic chair., - If arm not at 90 degrees, your wrist or shoulder will hurt., Take breaks from working at the computer for too long.,

Instructions for sitting at a computer safely

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