1. Anorexia
Different ways of understanding abnormal behaviour (models of abnormality)
Biological
Cognitive
Socio-cultural: Psychodynamic/family systems, behaviourist

2. Anorexia Nervosa Symptoms & clinical description Prevalence
How is a diagnosis made?
Prevalence
How common are they?
Risk factors
What makes it more likely that a person will get them?

3. Anorexia Nervosa

4. Mental Disorders
Symptoms of psychological disorders can be categorised into:
Cognitive (thinking)
Affective (emotion)
Behavioural
Physical

5. Anorexia Nervosa Main symptoms: Severely restricted food intake
Weight loss (below 85% of expected)
Distortion of body image
Underplays seriousness of weight loss
Fear of becoming fat
Cessation of periods (3+ missed)

6. Anorexia Nervosa Prevalence Prognosis: Affects 1 in 200 adolescents
90% of sufferers are female
Commonest in year old girls (1%)
Prognosis:
8% die within 5 years of onset
70% recover within 10 years
22% struggle with chronic symptoms

7. Anorexia Nervosa Risk factors Hard working, high achieving
Compliant, high need for approval
High need for control, low tolerance of change
Perfectionist
Competitive environment
Occupation associated with low weight

8. Bulimia Nervosa Bingeing episodes Purging behaviour
Consumption of large amounts of food
Feeling that eating is out of control
Purging behaviour
Self-induced vomiting
Laxative abuse
Excessive exercise
Weight typically in normal range, but sufferer unusually preoccupied with body weight/shape

9. Bulimia Nervosa Prevalence Prognosis Affects up to 3% of young women
Rare in men
Later onset than anorexia (late teens-20s)
Prognosis
70% full or partially recover within 10 years
Average 5yrs between onset & treatment

10. Bulimia Nervosa Risk factors Anxious & depressed Poor impulse control
Alcohol & drug use
High susceptibility to stress

11. Health Risks Starvation, bingeing & purging can lead to:
Irregular heartbeat & cardiac arrest
Liver & kidney damage
Bone defects & osteoporosis
Damage to teeth & oesophagus
Infertility
Electrolyte imbalance (sometimes fatal)
Cognitive impairments