pt 1 Clinical and Sociocultural Perspectives on Anorexia and Bulimia

Overview of Eating Disorders and Diagnostic Classifications

  • The lecture focuses primarily on two major eating disorders: Bulimia Nervosa and Anorexia Nervosa.
  • Both disorders are characterized by severe disruptions in eating behavior.
  • A primary feature of Anorexia is an intense fear of gaining weight.
  • Both conditions have strong sociocultural origins, largely stemming from Westernized views of beauty.
  • Other eating disorders mentioned in the DSM-5 (but not the focus of this lecture) include:     - Binge Eating Disorder.     - Rumination Disorder.     - Pica.     - Feeding Disorders (more commonly diagnosed in children).

Prevalence and Gender Differences

  • There is a significant gender difference in the diagnosis of eating disorders; they are much more frequently diagnosed in women than in men.
  • Lifetime prevalence rates for Anorexia:     - Women: Between 0.5%0.5\% and 1%1\%.     - Men: Approximately 0.1%0.1\%.
  • Lifetime prevalence rates for Bulimia:     - Ranges between 1%1\% and 3%3\% depending on the population being studied.     - 90%90\% of all diagnosed cases of Bulimia are women.
  • Although more common in women, rates are increasing among men, especially in specific contexts:     - Sports requiring athletes to "make weight" (e.g., boxing or wrestling).     - Increased advertising targeting a male "ideal" body image involving muscle mass.     - This has led to an increase in body dysmorphia and body image problems among men.
  • Eating disorders are particularly common among young adolescents and the college-aged population.

Sociocultural and Historical Perspectives on Body Image

  • Body image ideals are culturally and subculturally defined.
  • In the United States, the current ideal weight is between 15%15\% and 20%20\% below the average weight of the population.
  • Historically, the United States has trended toward being slightly more obese than healthy.
  • Shifting images of beauty in Western European and American traditions:     - Peter Paul Rubens (Renaissance Italy): His paintings depicted women who were larger than modern ideals. This look was considered beautiful because it signaled that the woman was not starving or emaciated during the post-plague era, indicating access to wealth and resources.     - Marilyn Monroe: While she was quite tiny, by modern standards, her image is often evaluated as being more "curvy."     - The 1990s ("Heroin Chic"): This era saw the emergence of fashion models who were unhealthily thin. The term "heroin chic" referred to a body type similar to what a person might accidentally attain due to a heroin substance use disorder.
  • Critical questions regarding the modern "ideal": Is it attainable? Is it a genetic anomaly? Is it airbrushed or touched up?

Clinical Definitions and Diagnostic Criteria for Anorexia Nervosa

  • Weight Threshold: Anorexia is defined as maintaining a body weight that is at least 15%15\% below the expected healthy weight for that individual.
  • Body Dysmorphia: A hallmark of the disorder where the individual sees a different, often larger, image in the mirror than what is reality.
  • Core Diagnostic Criteria:     - Refusal to maintain a minimally normal body weight (15%15\% below expected weight).     - Intense fear of gaining weight.     - Significant disturbance in the perception of the shape or size of one's own body.
  • Self-Evaluation: There is a heavy influence of body weight or shape on self-worth. Clients often view the value on the scale as determining their entire human value.
  • Denial: Individuals will often deny the seriousness of their current low body weight and fail to recognize emerging medical problems.

Subtypes of Anorexia Nervosa in the DSM-5

  • Restricting Subtype:     - The individual limits caloric intake through dieting and fasting.     - Accounts for approximately 50%50\% of the population diagnosed with Anorexia.
  • Binge Eating/Purging Subtype:     - The individual engages in binging and purging behaviors similar to Bulimia.     - Methods include inducing vomiting or the misuse of laxatives, diuretics, or enemas.     - Example: A person might consider a single candy bar a "binge" and then exercise for 3 hours3\,hours to compensate for it.     - This accounts for the remaining 50%50\% of cases.

Medical and Physical Consequences of Anorexia

  • Weight vs. Strategy Effectiveness: While individuals with Anorexia are significantly underweight, those with Bulimia tend to be slightly overweight or centered at a normal weight because their weight-loss strategies are often ineffective.
  • Appearance Changes:     - Development of brittle hair and nails.     - Sunken eyes.
  • Physiological Changes:     - Drop in pulse rate.     - Drop in body temperature.     - Constipation.     - Amenorrhea: The cessation of menstruation. This is a diagnostic criterion for women, though it can also occur in other contexts like distance running where there is a low fat-to-muscle ratio.
  • Biological Survival Mode: The body begins to feed on its own tissues to survive. It first exhausts fat stores and then begins to "self-cannibalize," feeding on its own organs.

Psychological and Social Implications

  • Psychological Changes: Low self-esteem, depression, chronically low mood, and mood lability (moodiness).
  • Cognitive Impact: Individuals report difficulty thinking clearly.
  • Social Behaviors:     - Preoccupation with thinness and food-related issues.     - Tendency to eat alone to avoid comments from others regarding their intake.     - Wearing bulky clothes (e.g., big sweaters) to camouflage thinness or because they are constantly cold due to the loss of insulating body fat.     - Withdrawal from friends, peers, and family relationships over time.
  • Extreme Intervention: Hospitalization may be necessary for intravenous (IV) feedings to keep the individual alive.

Demographics, Prognosis, and Recovery

  • Demographic Profile: Most cases are white women from middle to upper-middle-class families. This suggests the disorder is linked more to cultural image ideals within certain socioeconomic statuses rather than a lack of resources.
  • Onset: Usually emerges between age 1313 and early-to-mid adolescence, often as a response to puberty-related body changes or peer comments.
  • Prognosis: Anorexia is more chronic and resistant to treatment than Bulimia.
  • Recovery Statistics: Only 30%30\% to 40%40\% of those diagnosed ever fully recover.

Mortality and Suicide Risks

  • Eating disorders have the highest mortality rate of any psychological disorder.
  • Mortality Statistics:     - 5%5\% to 10%10\% die within 10 years10\,years of diagnosis.     - 18%18\% to 20%20\% die after 20 years20\,years.
  • Causes of Death:     - Death through starvation (a direct consequence of the behavior).     - Suicide: Between 30%30\% and 50%50\% of the deaths associated with Anorexia are suicides. Roughly 10%10\% of all people diagnosed with Anorexia take their own lives.
  • It is a leading cause of death for the 1515 to 2424 age demographic.

Treatment Interventions

  • There are currently no medical or pharmaceutical interventions with demonstrated efficacy for Anorexia.
  • Weight Restoration: Medical efforts focus on regaining weight beyond just IV feedings.
  • Psychological Approaches:     - Education.     - Behavioral interventions.     - Cognitive interventions.     - Family-based treatments.
  • Maintenance: Long-term prognosis is poor, as 60%60\% of people continue to struggle following treatment gains.

Pro-Ana and Pro-Anorexia Social Media Culture

  • Definition: Internet sites and social media groups designed to promote and sustain eating disorder behaviors.
  • Philosophy: These sites argue that symptoms should be treated as "lifestyle choices" rather than medical conditions.
  • Legal/Societal Conflict: This is a complex issue involving First Amendment rights to free speech versus the harm caused to vulnerable individuals.
  • User Interactions and Quotes:     - One user (2006) wrote: "I'm 5′2"5'2", 90 pounds90\,pounds… I'm obsessed with losing weight… I love to come to this site. I always feel better after reading the support."     - A website host listed reasons for starving: "Because starving myself is an addiction. I won't get anxious over what I've eaten… The longer I starve, the easier it is to continue."     - By 2014, sites provided tips on "how to survive the holidays" while maintaining disordered eating.
  • Impact Statistics:     - 96%96\% of users reported learning new behaviors from these sites.     - Nearly 70%70\% of users actually employed those new strategies.
  • Academy for Eating Disorders Position: These sites glorify anorexia as a lifestyle, playing into the psychology of victims, providing encouragement for health-threatening behaviors, and neglecting the consequences of starvation.