What is Ergonomics? Why do I need an Ergonomic chair? Ergonomics is an applied science of equipment design, specifically for the work place, intended to maximize comfort, and reduce pain and fatigue. The word Ergonomics is derived from two Greek words. Ergon, which means work, and Nomoi, which means natural laws. An ergonomic chair is built to make sure that while you are sitting at work, you will be as comfortable as possible. Since the average office worker spends more than 80,000 hours of his/her career sitting, good posture, and good ergonomics become very important. Everything from the shape of your spine, to the angle of your feet, has been taken into consideration when creating these ergonomic chairs.