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PSYB32 Ch 9

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Konstantine Zakzanis

PSYB32 Ch 9Anorexia nervosa AN anorexia refers to loss of appetite and nervosa indicates that this is for emotional reasons The person refuses to maintain normal body weight weight loss is achieved through dieting and purging selfinduced vomiting laxatives diuretics and excessive exerciseThe person has an intense fear of gaining weight and the fear isnt reduced by weight loss they can never be thin enoughPatients have a distorted sense of their body shapethey gaze criticallymirrors overevaluation of appearance the tendency to link self esteem and self evaluation w thinness Extreme emaciation causes amenorrhea the loss of the menstrual period2 Types of ANRestricting type weight loss is achieved by severely limiting food intakeBinge eatingpurging type the person regularly engages in binge eating and purging Psychopathological patients exhibit more personality disorders impulsive bhvr stealing alcohol drug abuse social withdrawal and suicide attempts than do the previous patientsThey also tend to weigh more in childhood come f heavier families and use more extreme methodsAN begins in middle teen yrs after an episode of dieting and exposure to life stressGrowing rate of Comorbidity of eating disorders and substance use disorders Physical changes in AN declining blood pressure 3 rate slows kidney and gastrointestinal problems dvlp bone mass declines dry skin brittle nails hair loss hormone levels change mild anemia dvlp laguna fine soft hair on their bodies potassium and sodium levels altered low levels of ionized saltdecrease in neural transmissiontiredness weakness cardiac arrhythmias and sudden death brain size declines neurological impairments Above 70 of patients recover but it takes 67 yrs And relapses are common Bulimia nervosa the disorder involves rapid consumption of a large amount of food followed by compensatory bhvrs such as vomiting fasting or excessive exercise to prevent weight gain morbid fear of fat Binge eating an excessive amount of food in less than 2 hrs Binges happen in secret triggered by stress and the negative emotions it arouses continues until the person is uncomfortably fullafter binging their selfconcept mood and social perception deteriorate and feelings of disgust discomfort and fear of weight gain take over Stressors are negative social reactions bulimics have high levels of interpersonal sensitivity and selfcriticism During a binge bulimics lose control and even enter a dissociative state losing awareness of what theyre doing and not feel its them who is binging Begins in late adolescence or adulthoodFrequency of BN is rising there is a cohort effect w rates begin higher among ppl born after1960 who also tend have younger ages of onsetA twin study found that depression and bulimia are genetically related Patients w bulimia who steal tend also to be illicit drugs users and promiscuousdue to impulsivity and lack of control
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