Wrists ache? Fingers stiff? There are a slew of good reasons to use ergonomic products while at the computer, especially if you sit in front of one for 40hrs/week. BFR lays down some of them...

"There are large a proportion of people working at a desk without giving due consideration to proper ergonomics as they work with ergonomically incorrect keyboards and mice. Working at a computer on a regular basis can cause the same type of stress on your body as other physical labors and in an effort to prevent such injuries from occurring, companies need to consider the principles of ergonomics."