The annual number of new cases of anorexia nervosa among 8 to 12 year olds in the UK and Ireland is around double that of a previous estimate in 2006, indicates research published in the online journal BMJ Open.
source https://www.lifetechnology.com/blogs/life-technology-medical-news/anorexia-nervosa-among-young-children-in-the-uk-and-ireland-on-the-up