Evaluation of Research Questions

My research question is how does the media effect eating disorders among teenage girls? I think my question does raise other questions like which media has the most negative effect and why? I do feel strongly about this topic and I'm very interested by it because its something that has effected my family and I. It is not related to my discipline. Yes, there are many authoritative research writings and studies done on this subject. I think that this topic will be intectually challenging and will definitely cause me to learn a lot about this subject that I didn't know or perhaps was always curious about. It will aslo help me learn how common it actually is (or isn't) in the real world. I think this topic will allow me to collect a lot of data because many people feel strongly about this issue and are or have been affected by it. Because it is a health issue, many studies and researches have been done on this topic before and I think that it's a quite popular subject among my generation.