evaluation of research question

My main question is, "How does the media directly influence girls' view of their own body?" I think that this raises other questions like, "Why does the media display these types of images when they know that it negatively effects girls' self esteem?" "Why is the 'best body type' for models to be extremely skinny, when the public is not like that?" I feel strongly about this topic first of all because one of my best friends had an eating disorder throughout middle school and part of high school. I want to learn more about how she dealt with that, and how it happened in the first place. I also think that your personal health is very important; I dislike when girls are always complaining "Oh I'm fat, or I'm not good enough." I think that I would be able to find out a lot of information on eating disorders and why they are caused; hopefully one of the main reasons being the media. I think it will be challenging to view this in everyday life only because girls who have eating disorders normally hide this from society. I don't know how I will ethnograph this. I think it would be really interesting to interview my best friend to see how this really effected her life.