Objective:Bright light therapy is a noninvasive biological intervention for disorders with nonnormative circadian features. Eating disorders, particularly those with binge-eating and night-eating features, have documented nonnormative circadian eating and mood patterns, suggesting that bright light therapy may be an efficacious stand-alone or adjunctive intervention. The purpose of this systematic literature review, using PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines, was (1) to evaluate the state of the empirical treatment outcome literature on bright light therapy for eating disorders and (2) to explore the timing of eating behavior, mood, and sleep-related symptom change so as to understand potential mechanisms of bright light therapy action in the context of eating disorder treatment.

Data Sources:A comprehensive literature search using PsycInfo and PubMed/MEDLINE was conducted in April 2016 with no date restrictions to identify studies published using bright light therapy as a treatment for eating disorders. Keywords included combinations of terms describing disordered eating (eating disorder, anorexia nervosa, bulimia nervosa, binge eating, binge, eating behavior, eating, and night eating) and the use of bright light therapy (bright light therapy, light therapy, phototherapy). After excluding duplicates, 34 articles were reviewed for inclusion.

Study Selection and Data Extraction:14 published studies of bright light therapy for eating disorders met inclusion criteria (included participants with an eating disorder/disordered-eating behaviors; presented as a case study, case series, open-label clinical trial, or randomized/nonrandomized controlled trial; written in English; and published and available by the time of manuscript review).

Results:Results suggest that bright light therapy is potentially effective at improving both disordered-eating behavior and mood acutely, although the timing of symptom response and the duration of treatment effects remain unknown.

Conclusions:Future research should systematically control for placebo response, assess symptom change frequently and across a broad range of systems, and evaluate the longer-term efficacy of bright light therapy for eating disorders.

OBJECTIVE: Recovery from anorexia nervosa (AN) is often confounded by intrusive, anxious preoccupations with control of eating, weight and shape. These are distressing and represent a potential barrier to psychological change. Theoretical and empirical evidence suggests that performing a concurrent visuospatial task reduces the emotional intensity of distressing images. We assessed whether the visuospatial task of knitting influences the anxious preoccupation experienced by inpatients with AN. METHOD: Prospective interventional cohort. SUBJECTS: Thirty-eight women with AN admitted to a specialized eating disorder unit. INTERVENTION: All subjects were given knitting lessons and free access to supplies. MEASURE: Subjects were asked to report the qualitative effects of knitting on their psychological state using a self-report questionnaire. RESULTS: Patients reported a subjective reduction in anxious preoccupation when knitting. In particular, 28/38 (74%) reported it lessened the intensity of their fears and thoughts and cleared their minds of eating disorder preoccupations, 28/38 (74%) reported it had a calming and therapeutic effect and 20/38 (53%) reported it provided satisfaction, pride and a sense of accomplishment. DISCUSSION: This preliminary data suggests that knitting may benefit inpatients with eating disorders by reducing their anxious preoccupations about eating, weight and shape control. The specificity of this effect is yet to be determined. This preliminary outcome requires further controlled study in AN subjects. From a clinical perspective, knitting is inexpensive, easily learned, can continue during social interaction, and can provide a sense of accomplishment. The theoretical and empirical rationale for this observation, and implications for deriving alternative strategies to augment treatment in AN, are discussed.

BACKGROUND: Individuals with restrictive eating disorders present with co-morbid psychiatric disorders and many attempt to control symptoms using strenuous exercises that increase caloric expenditure. Yoga offers a safe avenue for the engagement in physical activity while providing an outlet for disease-associated symptoms. This study sought to examine use of yoga practice in an outpatient setting and its impact on anxiety, depression and body image disturbance in adolescents with eating disorders. METHODS: Twenty adolescent girls were recruited from an urban eating disorders clinic who participated in weekly yoga classes at a local studio, in addition to standard multidisciplinary care. Yoga instructors underwent training regarding this patient population. Participants completed questionnaires focused on anxiety, depression and body image disturbance prior to the first class, and following completion of 6 and 12 classes. RESULTS: In participants who completed the study, a statistically significant decrease in anxiety, depression, and body image disturbance was seen, including: Spielberger State anxiety mean scores decreased after the completion of 7-12 yoga classes [47 (95%CI 42-52) to 42 (95%CI 37-47), adj. p = 0.0316]; as did the anorexia nervosa scale [10 (95% CI 7-12) vs. 6 (95%CI 4-8), adj. p = .0004], scores on Beck depression scales [18 (95%CI 15-22) to 10 (95%CI 6-14), adj. p = .0001], and weight and shape concern scores [16 (95%CI 12-20) to 12 (95%CI 8-16), adj. p =0.0120] and [31 (95%CI 25-37) to 20 (95%CI 13-27), adj. p = 0.0034], respectively. No significant changes in body mass index were seen throughout the trial. CONCLUSIONS: Yoga practice combined with outpatient eating disorder treatment were shown to decrease anxiety, depression, and body image disturbance without negatively impacting weight. These preliminary results suggest yoga to be a promising adjunct treatment strategy, along with standard multidisciplinary care. However, whether yoga should be endorsed as a standard component of outpatient eating disorder treatment merits further study.