Have you ever gotten tired of doing the same thing again and again at office, at home or at school and colleges? The complex nature of our brain which has evolved through hundreds of years to be more productive. When comparing us to animals you will notice that animals spend twice as much time as humans resting and sleeping. This shows the constant fluid nature of our mind which is at a constant stage of processing. We have been pressing the thresholds of human productivity to newer levels and led to more creative ad more work done in a shorter period of time. Hence it is now wonder that the human mid gets tired so easily by focusing on one thing at a time, no matter how challenging it is, the minds gets over it and looks for something else with which it can relax or further use all the other underutilized parts of the mind. Thought the efficiency of human minds is at its historical best, it requirement for time to regroup and revitalize that brain has also increased. This is important for working ahead and also for the growth of other parts of the brain which are currently not working.
Your managers and bosses will try to push you as harder as they possibly can to get as much work done out of you as possible in a short period of time. What they do not realize is the capacity of human brain is not endless and hinders productivity considerably. When working on something, certain parts of the brain do net get used to their full potential, these parts lead the whole brain to get diverted from the task at hand. That’s why you see lots of employees playing games and watching porn at office hours. Hence small breaks at regular intervals are very important.