Healing with light

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Healing with light ( healing-with-light )

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3 EATING DISORDERS + LIGHT 3.3.7 ED + Side effects Surroundings, meals and activity in treatment is very restricted and ex- tremely controlled, allowing for customised lighting schemes. Previous findings show no reason to expect that CL will have any effect on the AN, but suggest some effect in BN and maybe BED. Obesity and binge eating has been connected to phase delayed chrono-patterns. (Tahara and Shi- bata, 2013) Circadian lighting is waves of light, varying in colour/CCT and intensity/lumen over the course of a day. Potential side effects from are not general, but headaches and nausea are reportedly reoccurring. (Eiber and Friedman, no date; Jurvelin et al., 2014)As this is common side effects of underweight and ED, it can be hard to discover increased discomfort in the patients, (Interview B, 00:11:26) (Interview C2, 00:04:42) which makes it diffi- cult to determine whether the BLT/CL courses negative effects. It should be possible to detect and determine positive effects. CL and light therapy in general are non-invasive and should be tested. 3.3.8 ED + Seasonality Depression and anxiety are two of the comorbid diseases in severe ED. (Interview C, 00:09:30-00:10:30) Nothing suggests that ED patients develop SAD symptoms more than healthy Danish people, but one subject explained that more difficulties gaining weight during the Winter, than during Summer. This problem occurs mainly because the body burns more calories when it is cold, as it needs padding to keep the organs safe and running, but also because she feels that her mood and eating are closely related. She is very sensitive to the sun and to getting energy from being outside during the day. (Interview D, 00:06:10, 00:14:44, 00:15:08) One of the experts experi- enced some symptoms of seasonality and SAD in young patients, but it is not something they draw attention to. Noting that summer allows for more outdoor activity, that can positively affect ED patients’ mood. (Interview E, 00:10:02) SAD symptoms are more regular in BED and BN than in AN, and both behaviours can become more extreme during winter. There is no evidence suggesting that seasonality is connected to ED to a higher degree than the standard in Danish population. (Danmarks statistik, 2016) 3.3.9 ED + Personal disorder The two, often described faces of ED draws attention to borderline, personal disorders, (Interview D, 00:09:08) bipolar disease (BP) and schiz- ophrenia (SF) that are other psychiatric diagnoses with a sudden change in mood stability and personality. (Interview F, 00:06:30) These symptoms are not recognised as “comorbidity” as it is hard to tell symptoms of severe ED and symptoms of the comorbid mental illnesses apart. (Interview C2, 00:10:09) Current findings from bipolar disease (BP) and schizophrenia (SF) show promising results from light treatment. (Jagannath, Peirson and Foster, 2013) A possible future connection can be made. Master thesis · MSc Lighting Design · Pernille Bech-Larsen · Fall 2017 48

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