In many countries today, governments have started to make laws that limit how many hours employees can work, and there are several reasons why this kind of rules are being introduced. One main reason is that in some workplaces employers ask workers to stay for very long hours, sometimes much more than a normal person can handle. When people work too much, they become very tired and stressed, and after some time it can even cause serious health problems. So governments want to protect workers from being overworked and to make sure they have enough time to rest.