The human body is no different than the machinery, in fact it is a biological machine that needs fuel, refrigeration and rest for a correct functioning, however it is surprising how a good rest leaves us like new, many times we worry about doing things believing that by investing more time than necessary will help us to finish it quickly, this may be true but there is a decrease in efficiency due to fatigue that can impair the work done, That's why it's better when the mind and body are exhausted to take a break, after doing so you will notice how your mind can work in a clearer way and your body regains its strength and agility, force the body to work more than it can destroy the machine that we were given to walk on this earth, when we are young we hardly notice the effects but the body sooner or later will take its toll.!