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Related Concept Videos

Anorexia Nervosa01:28

Anorexia Nervosa

Anorexia nervosa is a complex and severe eating disorder characterized by an intense fear of weight gain, an unrelenting pursuit of thinness, and a distorted body image. It often leads to dangerously low body weight relative to an individual's age and height. This disorder is marked by significant physical and psychological consequences, making it one of the most life-threatening psychiatric illnesses.
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
Bulimia Nervosa01:30

Bulimia Nervosa

Bulimia nervosa is a complex and severe eating disorder characterized by a cyclical pattern of binge-and-purge eating pattern. It generally involves an episode of binge eating, followed by compensatory behaviors such as vomiting, excessive exercise, laxative use, or fasting, to prevent weight gain. Despite often maintaining a normal weight, individuals with bulimia are intensely preoccupied with their body image and harbor an overwhelming fear of gaining weight. This can contribute to the...
Binge Eating Disorders01:23

Binge Eating Disorders

Binge eating disorder is a significant mental health condition characterized by recurrent episodes of excessive food consumption within a short period, accompanied by a perceived loss of control over eating behavior. Unlike occasional overeating, binge eating disorder is marked by distressing emotions such as guilt, shame, and anxiety following binge episodes. The disorder affects individuals across different ages and backgrounds, with profound implications for physical and psychological...
Taste Buds and Receptors01:20

Taste Buds and Receptors

Gustation, or the sense of taste, is intrinsically linked to the anatomical structures located on the tongue. This organ's surface, along with the entirety of the oral cavity, is adorned with stratified squamous epithelium. Evident on the tongue are elevated structures known as papillae (singular = papilla), which house the mechanisms for the transduction of gustatory stimuli. Four distinct types of papillae exist, each identified by their unique morphological attributes: the circumvallate,...
Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy01:30

Inflammatory Bowel Disease III: Diagnostic Studies and Management I-Nutritional Therapy

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Regulation of Food Intake

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Related Experiment Video

Updated: Jun 20, 2026

Assessing Activity-based Anorexia in Mice
08:26

Assessing Activity-based Anorexia in Mice

Published on: May 14, 2018

Anorexia nervosa: current status and future directions.

Evelyn Attia1

  • 1Weill Cornell Medical College and Columbia Center for Eating Disorders, Columbia University Medical Center, New York, New York, USA. ea12@columbia.edu

Annual Review of Medicine
|September 2, 2009
PubMed
Summary

Anorexia nervosa (AN) is a severe mental illness characterized by weight concerns and a fear of gaining weight. Research is ongoing to find effective treatments for AN, especially for adults, and understand its biological underpinnings.

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Area of Science:

  • Psychiatry
  • Neuroscience
  • Genetics

Background:

  • Anorexia nervosa (AN) is a critical mental illness.
  • It involves failure to maintain normal weight, intense fear of weight gain, and body shape preoccupations.
  • AN has high morbidity and mortality rates, comparable to other psychiatric illnesses.

Purpose of the Study:

  • To summarize the current understanding of anorexia nervosa.
  • To highlight challenges in treatment and research priorities.

Main Methods:

  • Literature review and synthesis of existing research on AN.
  • Discussion of biological factors, including genetic predisposition.
  • Evaluation of current treatment approaches and their limitations.

Main Results:

  • Biological factors, such as genetic predisposition, contribute to AN development.
  • Treatment is difficult due to lack of empirically supported interventions and patient reluctance towards weight restoration.
  • Family-based treatment shows promise for younger AN patients.

Conclusions:

  • AN is a serious psychiatric condition with significant health risks.
  • Further research is crucial for developing effective treatments for adults with AN.
  • Investigating the neurobiological aspects of AN is a key research priority.