Eating disorder portion of the vulnerability to develop eating disorders can be inherited, and there is evidence to show that there is a genetic locus that shows susceptibility for developing anorexia nervosa. About 60% of eating disorder cases are attributable to biological and genetic components. Other cases are due to external reasons or developmental problems. There are also other neurobiological factors at play tied to emotional reactivity and impulsivity that could lead to binging and purging behaviors. Epigenetics: Epigenetic mechanisms are means by which environmental effects alter gene expression via methods such as DNA methylation; these are independent of and do not
Eating Disorder Examination Interview over a 28-day period. The test is scored on a 7-point scale from 0-6. With a zero score indicating not having engaged in the questioned behavior. The Eating Disorders Examination Questionnaire (EDE-Q) was adapted from the EDE. The EDE-Q is a 41 item self-report questionnaire. It retains the format of the EDE including the 4 subscales and global score. It also concerns behaviors over a 28-day time period and retains the scoring system of 0-6, with 0 indicating no days, 1=1–5 days, 2=6–12 days, 3=13–15 days, 4=16–22 days, 5=23–27 days and 6= every day. Eating Disorder Examination Interview The Eating