If you sit at your desk for lengthy periods of time, an office chair is a very essential part of your working life. You work eight hours a day, at least, five days a week, and forty-eight weeks every year. Thus, if you sit at your desk at least five hours daily, you spend about 1,200 hours seated in your chair. It totals 1,200 hours that is equivalent to 50 days and nights sitting down! Sometimes at work, you sit on cheap but sturdy chairs, which can be available for a price thats close to nothing. Although they are built with solid materials and are guaranteed to last for up to 5 years, if they arent ergonomically designed, they are not advisable for prolonged usage.