Social Work, which is basically Psychology Lite
TM, with the added stress of needing to fix people's problems, without telling them how to fix their problems. So you have to listen to them talk about all their problems, give them therapy, suggest different ways of looking at the problem and help them "explore their options." AND you need to take them to their doctor's office, on their grocery shopping trips, to the mall, to the gym, to the financial aid office, to the court, basically anywhere, depending on what your specific field is.
Other medical professionals think that you're just doing Psychotherapy Lite
TM, so they don't care much about your analysis of the patient's condition, even though you see them three times a week. And so you end up needing to advocate both for the patient, to get the patient what he/she needs, and for yourself, to get the other doctor to take you seriously.

The reason people think it's lite is that, unless you minor or double major in psychology, you take less classes on neurochemical processes, but you do spend time learning it. Even if more of your time is spent on learning symptoms and options for therapy than is spent on regions of the brain effected by each disease. I would have minored in psychology, but that required a second psychoneuroimmunology course, and I didn't enjoy the first one, so I minored in Sociology.