Work has always meant survival of the human race - a necessary and important part of our lives. Today it is no longer necessary-as it was in former times-that we work all day long, yet we still live in an age when work, mentally and in terms of time, is a big part of our lives.

Most people know what it means to be up to one's neck in work, and having to work overtime during a busy period at work. Suddenly a large number of tasks have to be solved, a deadline has to be kept, or a certain project demands a lot of time. Many people may also have experienced their work taking control...