Following a short definition of possible sources of general stress I don’t want to go into more detail, since you will find excellent sites on the Internet dealing with stress:
… consequences of the failure of a human or animal body to respond appropriately to emotional or physical threats to the organism, whether actual or imagined. (Wikipedia)
Much stress producing sorrows are unfounded if you:
To take responsibility among other possibilities means to a high degree applying methods to better manage your work and therefore time.
New perspectives are an issue of proper goal setting, that dictates certain time frames.
Furthermore, carriers include the development of time management skills and habits supporting the clever use of work time.
Therefore, an important source to a high degree is missing or improper time management used at work.