When you work at a computer for long periods of time, it’s important to have the right chair and posture to avoid health problems. Sitting in a chair that is too low or too high can cause back problems, and sitting with poor posture for extended periods of time can lead to neck and shoulder pain.

To find the right chair height, adjust the chair so that your feet are flat on the ground and your thighs are parallel to the ground. If the chair is too low, you can raise it with a footrest. If the chair is too …