Consider a standing desk, sitting is bad for you. Find reasons to walk more.
When working or playing at the computer, adapt your surroundings and arrange your computing equipment to promote a comfortable and relaxed body posture.
Because everyone has a unique body size and work environment, we cannot tell you exactly how to set up your workstation to avoid discomfort; however, the following suggestions may help to provide you with a more comfortable position.
To promote proper wrist and finger postures, consider the following:
Keep your wrists straight while typing and while using a mouse or trackball.
Avoid bending your wrists up, down, or to the sides. Use the keyboard legs if they help you maintain a comfortable and straight wrist position.
Type with your hands and wrists floating above the keyboard, so that you can use your whole arm to reach for distant keys instead of stretching your fingers.