We cannot be always working. As a normal person, we must have rest and need to relax for some time. Relaxation is not exclusively for our body, our mind and soul requires it as well.
Work is stimulating. Fatigue is a normal body signal. But over-fatigue is senseless and should be avoided. It could possibly lower one's ability to work efficiently. A short period of rest while performing a monotonous or lengthy task helps the body to get rid of the waste products through skin and lungs.
Often, one plans to do a full days of work and then to have rest period, but this is not the best plan because it takes the body so long to reach the point of relaxation. The human machine cannot remain at the same occupation 24 hours a day. So, cultivate the right attitude towards relaxation. A better method is to introduce short periods during the performance of the task. These short periods may be change of work such as writing a note, recording expenses or chatting with your colleagues. Also, the one way to relax is to get free content for your websites from Article Writing Services rather than working on them for hours. Regulate the amount of work tackled in an hour or a day. This means we should be conscious of how much time it takes us to do a job and how much we can accomplish without losing our good disposition at the end of the day.
Therefore, learn to relax as you work.