Psychology 2030A/B Lecture 9: Lecture 9 - Feeding and Eating Disorders (Chapter 7)

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Those with an often have amenorrhea lack of menstrual period for 3 consecutive months: not necessary for diagnosis. Hide emaciation (severe underweight) by wearing layers of clothes. Measured by body mass index (bmi) low bmis: kg/m2 weight in kg, height in m, below 18. 5 = underweight. Restriction of energy intake relative to requirements leads to low body weight. Intense fear of gai(cid:374)i(cid:374)g (cid:449)eight or (cid:862)feeli(cid:374)g fat(cid:863) 2 subtypes: restricting reducing caloric intake & increase physical activity, binge eating/purging. Perception of body size and weight is distorted. Use weight and shape as a measure of self-evaluation. Physical: dehydration, electrolyte imbalances, osteoporosis, low body temperature, low body pressure, slow heart rate, growth retardation. Occurs in 0. 9% of women and 0. 3% of men. Females are 3 times more likely to develop disorder. Females suffer from less severe forms of an have subthreshold conditions: can suffer from social and occupational impairments. Begins in adolescence, usually after puberty: more cases in childhood and older adulthood.

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