Malcom McCallum says,"However, I personally believe that if you are getting a phd then you should be doing it in something you are interested in, in which case you will ultimately not find publishing all that stressful or difficult."
Being interested and wanting to do research and publish is different from finding it stressful or difficult. If you work at a college/university where research is expected but you are perhaps in class/lab 12-16 hours a week, in committee meetings 3-5 hours a week, advising/mentoring/tutoring students 4-10 hours a week, prepping for your classes and labs another 8-20 hours a week, then finding time for research (and especially publication) can certainly be stressful and difficult.
