Eating Disorder

Eating Disorder 150 150 Tony Guo

Eating Disorder

Types of Eating Disorder

  1. Anorexia Nervosa
  2. Bulimia Nervosa
  3. Binge Eating Disorder


  • Biological factors
    • Genetics
    • Neurobiological (neurotransmitters- serotonin and norepinephrine)
  • Psychological factors- suggestions that development of an eating disorder is rooted in an unfulfilled sense of separation-individuation (events occur that threaten the vulnerable ego, feelings of lack of control over one’s body (self) emerge)
  • Environmental factors- such as family influence

Anorexia Nervosa

  • Intense & irrational beliefs about one’s shape and weight, including fear of gaining weight

General signs and symptoms

  • Weight loss
  • Constipation
  • Abnormal lab values
  • Excessive exercising
  • Amenorrhea
  • Use of laxatives, diet aids, or herbal weight loss products
  • Yellow skin
  • Denial of hunger
  • Lanugo
  • Rigid counting/calculating calories/fat
  • Cold Extremities

Psychological Signs and Symptoms

  • Increased isolation
  • Irritability, moodiness
  • Depression
  • Anxiety
  • Interpersonal conflicts
  • Defensive stance when confronted about weight or eating behaviors
  • Wearing baggy clothes or layers to hide weight loss (and maintain thermoregulation

Bulimia Nervosa

  • Eating binges typically followed by efforts to purge calories

General signs and symptoms

  • Chronically inflamed and sore throat
  • Potential for gastric rupture
  • Cardiac problems
  • Acid reflux
  • Inflammation and possible rupture of the esophagus
  • Severe dehydration and electrolyte imbalances
  • Decalcification of teeth, enamel loss, staining, severe tooth decay and gum disease due to HCL acid

Psychological signs and symptoms

  • Substance abuse
  • Depression
  • Signs of self-injury
  • Anxiety
  • Withdrawal from usual friends and activities
  • Irritability or fluctuating moods
  • Lifestyle changes to accommodate established rituals for binge-and-purge sessions.

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