Are you constantly having neck and shoulder pain? Do you sit for hours at your computer? If you can answer yes to both questions, you may want to try moving or eliminating your mouse. 

That’s right. Shoulder and neck pain is often a result of mouse placement.  If your mouse is too far away from your keyboard, it requires you to stretch and reach as you use it.  This stretching and reaching activates neck, shoulder, and upper back muscles. Hold this position too long or too frequently and you are likely to have shoulder and neck pain.  If you mouse is placed closer, but you fin you’re in a cramped position as you use it, the same stress occurs. The solution is very simple.  
You can either move your mouse closer to your keyboard or you can opt for a keyboard with a touchpad.  The touchpad replaces the mouse so you’re no longer stretching and straining the muscles.  Viola! The pain disappears.