Dr. Pascarelli recommends against the use of wrist rests while typing: "The use of wrist rests is controversial. I prefer to call them wrist guides and ask my

Dr. Pascarelli recommends against the use of wrist rests while typing: "The use of wrist rests is controversial. I prefer to call them wrist guides and ask my patients to use them only as guides, because resting the forearms on a wrist support while keying can be harmful for several reasons. First, they take the upper arms out of the process of keying, so you are overloading the forearm and hand muscles and increasing your chances of injury. Moreover, the wrist support tends to encourage potentially harmful positioning, particularly wrist extension (bending your wrist up, as in pushing a door open). With the wrist fixed on the wrist rest, there is a tendency to use a windshield-wiperlike wrist motion, which is extra work and harmful. Finally, the wrist rest places pressure over the carpal tunnel area, which is not a good idea." Using them while you're sleeping or resting is OK, but using them while you're typing is not a good idea. I had wrist troubles a few years back. The only thing that helped was using a vertical keyboard: http://safetype.com/ http://safetype.com/ No wrist motion, no more problems.