At present corporations at present tend to invest their money in different solutions, which aim to increase the effectiveness of the people employed in the company. Working inter alia on PC then is often related to being tired substantially faster than in the case of physical work. Therefore, plenty specialists in the corporations are aware of the fact that it is significantly better to work for one-hour period four times with a 10-minute break than for instance to work for more than 6 hours without any pause.