Anorexia Nervosa

An eating disorder causing people to obsess about weight and what they eat.
Anorexia is characterized by a distorted body image, with an unwarranted fear of being overweight.
Symptoms include trying to maintain a below-normal weight through starvation or too much exercise.
Medical treatment may be needed to restore normal weight. Talk therapy can help with self-esteem and behavior changes.


Cluster Number:
Wiki Number: W011
Diagnosis: Anorexia Nervosa
US Patients:
World Patients: 3 Mil
Sex Ratio:
Age Onset: 12
Brain Area: dorsal anterior cigulate cortex – self-control
Symptoms: low weight, fear of gaining weight, food restriction
Progression: purging, perception of being overweight, self-harming. Feeling full; lost periods and ovulation
Causes: genetic, professions requiring “thinness”,inheritable
Medications: limited benefits found. Therapy: Remission: m-3 years; w-7 years
Therapies: Psychotherapy-reduce need to be thin; more food; CBT


The world-wide medical research
reports chosen for each diagnosis 

Clicking each title opens the
PubMed article’s summary-abstract.

  • Bridging of childhood obsessive-compulsive personality disorder traits and adult eating disorder symptoms: A network analysis approach
    by Sarah Giles on January 22, 2022

    OBJECTIVES: Obsessive-compulsive personality disorder (OCDP) traits are commonly associated with eating disorders (EDs), with evidence demonstrating that these traits predispose and exacerbate the ED illness course. However, limited research has examined the symptomatic interplay between ED and OCDP traits. We used network analysis to (1) identify the most central symptoms in a network comprised of OCPD traits retrospectively assessed in childhood and ED symptoms and (2) to identify symptoms...

  • Cognitive Behavioural Therapy for an Adolescent with Anorexia Nervosa
    by José I Baile on January 21, 2022

    INTRODUCTION: The treatment of anorexia nervosa remains a matter of much debate. Though cognitive behavioural therapy would seem to offer good results, there is still no resounding evidence pointing to a single treatment of choice. The case presented in this paper examines the treatment with CBT of a patient presenting anorexia nervosa. Evaluation/diagnosis: An adolescent girl, 17 years of age, voluntarily attends psychological therapy to address eating behaviour problems. After administering...

  • Is set-shifting a risk factor for anorexia nervosa or a broader range of disordered eating?
    by Alison E Field on January 21, 2022

    Steegers et al. using data from the Generation R cohort study examined whether set-shifting difficulties at age 4 predict body dissatisfaction, weight status, and restrictive eating at age 9 as a way to examine whether cognitive rigidity was a risk factor for an eating disorder. The authors concluded that set-shifting difficulties problems were predictive of features of anorexia nervosa. An alternative interpretation is that set shifting is predictive of large weight changes and eating behaviors...

  • Gastrointestinal Interoception in Eating Disorders: Charting a New Path
    by Sahib S Khalsa on January 21, 2022

    PURPOSE OF REVIEW: Abnormal interoception has been consistently observed across eating disorders despite limited inclusion in diagnostic conceptualization. Using the alimentary tract as well as recent developments in interoceptive neuroscience and predictive processing as a guide, the current review summarizes evidence of gastrointestinal interoceptive dysfunction in eating disorders.