The characteristics of your workday, independent of the specific content of your job, can matter just as much. We care a lot in American culture about what is my job. So I'm going to enumerate four characteristics of workdays that really has an impact on your subjective experience of work. The major source of stress is overload, especially in white collar work. Things are upset when we have lots of ambiguous tasks and obligation to deal with and it's unclear how to deal with them.