I'd say around 15 or 16.
What age would you say most girls start worrying (obsessing) about their weight?
I think it starts happening around 12 or 13 and can last indefinitely. It can be a real danger. I lost one of my friends to anorexia.
I'd say around 12 or 13
More likely that the text from this article should give some answers.
I'd say around 18 - 20
When she thinking about marriage.