Working on the computer may sound like the most relaxed job in the world, but it's quite the contrary. It's very tough on your body, which is not used to this modern type of work. The issues range from sitting for long hours, using they mouse and keyboard extensively, while staring at a bright screen and working in isolation at a stressful job. In other words, working on the computer is as unhealthy a job as you can imagine. Let me show you what the culprits are and how you can avoid and fix them.