Your body wasn't designed by nature to shake a lump of plastic side to side all week. It was designed to pick berries and turn leaves into loincloths (or something like that). Using a mouse or a trackpad for a long period of time is going to give you carpal tunnel syndrome or mouse shoulder (or both), and we're all using them too often.
Recovery: Zombie Mouse Apocalypse
Carpal tunnel is a condition caused by the swelling of the wrist’s median nerve and is often the result of making the same wrist movements over and over, day in and day out. It’s characterized by tingling, pain, and weakness in the wrist. And then there's mouse shoulder, the inflammation of shoulder tendons that come from the bad posture of using a computer, often caused or made worse by trying to compensate for wrist pain.
Most of us long ago got used to the idea of using laptop trackpads and junky keyboards and mice that came with our computers. But gamers, willing to spend money on peripherals they feel will improve their performance, were buying things like mechanical keyboards and gaming mice . These peripherals are often built with ergonomics, comfort, and precision in mind, but those are all things everyone should experience, not just gamers.
What to AvoidOur guide to the Best Gaming Mice has some great tips for what gamers might want in a mouse, but if you’re not gaming, the most important thing to look out for is the shape. The cheap gaming mice tend to share the same basic design you'll find on the expensive ones. There are a few other specs to be wary about too.
Ignore DPI. DPI, or dots per inch, is an overrated measurement of movement sensitivity that's more useful to marketing executives than the people who actually use them.
Get one with very few buttons. You don't need 10 buttons on a mouse. They might be helpful if you're cycling through weapons to shoot bad guys, but they cost more and are unnecessary if you're not gaming. Thumb buttons on the grip of the mouse, in particular, always get in my way.
Latency. You'll see companies touting a near-zero delay for the time it takes the mouse to register your movements on the screen, and they may use this to push wired mice over wireless ones. In reality, mice are so good these days whether they're wired or wireless. I prefer a cord as it means I don't need batteries on hand to keep it powered, but whichever you go for, it doesn't make much of a difference as far as comfort.