All Work and No Play ...
Years ago Adbusters, that great magazine dedicated to consumer culture, was doing articles about how the current mental state of people (anxiety disorders and so on) were directly linked to capitalism. The writers presented some compelling ideas and science, but since capitalism is linked to everything it's hard to say that it has a large role in the rise of Paxil prescriptions.
I do believe our culture plays a large role in the amount of mental illness in our society. Some of the science backs this up. Not all of it, but enough that it is a cause of concern.