High serotonin levels has also been linked to Social Anxiety Disorder.
And other anxiety disorders. The book provides a lot of evidence of the links between anorexia and anxiety.
Does the author believe if we can control serotonin levels, we can help cure anorexia?
She doesn't engage in any sort of speculation. The book is written as half literature review and half anecdotes (anec-data ;-) and it leaves the reader to draw his/her own conclusions about what the implications of the science are for treatment.
Anecdotally, my illness was a coping mechanism for anxiety. Reading about the science behind that has been very interesting for me, as I had suspected for quite awhile that I had an anxiety disorder that manifested itself as anorexia. I can also say that taking an SSRI (which I've been doing for 8 years) has helped with my anxiety a lot. I had four years between reaching a healthy weight and starting to take the SSRI that were still a constant battle with anxiety.
Proud member of Fishtwitch and the ST Grammar Police
disclaimer: I am a PhD, not a medical doctor. The closest I get to surgery is topology.