Scientists have linked sleep duration and the probability that the person will have an eating disorder.

Seasonal changes of daylight and of night time lead to the fact that people with late chronotype (so-called "owls" – those who are late to bed and late to rise) becomes larger. Such people are prone to depression, stimulant use (tobacco, alcohol) and eventually, to obesity. This and other conclusions of the group of researchers from Ural Federal University, Institute of physiology, Komi scientific center, Ural branch of RAS, Syktyvkar state and Vyatka, and also in Tyumen medical universities. The data and the results of a study published in the journal European Eating Disorders Review.

"the Main external factor increasing the risk of obesity, is the easy availability of cheap high-calorie foods, noted co-author, associate Professor of Department "Clinical psychology and psychophysiology" Urfu Olga dorogina. And two important internal factor is depression and short sleep duration".

The objects of study were schoolchildren and students, whose average age is 17.9 years (range 12-30 years; 66.6% female). The surveys were conducted in years 2017-2019, the part they took 2 360 inhabitants of the North European part of Russia. Took into account the time of sunrise and sunset, duration of day, body mass index.

"the Results indicate that some characteristics of the rhythm of sleep-wakefulness in people with symptoms of depression and food addiction are similar, but between these two States there are differences in respect of sleep," says dorogina.

According to her, the curious thing is that scientists have found a relationship between depressive symptoms and food addiction with a start time of sleep on weekdays and photoperiod: the later the respondents were within the bed, and the later the sun was rising, the higher was the probability of the bad state of mind and overeating.

"Those who skip Breakfast and consume a large part of the daily diet in the evening, are at risk of obesity and metabolic syndrome. A similar, but more pronounced side effects were observed in night-shift workers, who are forced to eat in the dark" – told in the press service of Urfu.

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Jennifer Alvarez is an investigative journalist and is a correspondent for European Union. She is based in Zurich in Switzerland and her field of work include covering human rights violations which take place in the various countries in and outside Europe. She also reports about the political situation in European Union. She has worked with some reputed companies in Europe and is currently contributing to USA News as a freelance journalist. As someone who has a Masters’ degree in Human Rights she also delivers lectures on Intercultural Management to students of Human Rights. She is also an authority on the Arab world politics and their diversity.