How does social media use influence the eating habits of teenagers in ____ (place)?

“How does social media use influence the eating habits of teenagers in ____ (place)?”
Your question should be (a) related to health, illness, and society (i.e. not strictly biomedical), and (b) answerable by relying upon secondary sources (scholarly literature), rather than requiring primary research(e.g. conducting interviews, discourse analysis, focus groups, surveys, etc.).