Seasonal affective disorder or periodic winter depression
Seasonal affective disorder or periodic winter depression is a form of depression that recurs in autumn and winter and disappears in spring and summer. The majority of patients are slightly more likely to be women than men, although they have symptoms of depression - loss of energy satisfaction, feelings of worthlessness, inability to concentrate, manifestations and more moderate weight gain, with an increased need for sugar and foods high in carbohydrates and the appearance of symptoms only in winter, This disease is somewhat similar to hibernation, which exists in some animal species (for example, bears), and it cannot be considered a "real" psychiatric problem.
Bright white light therapy has been useful for the treatment of seasonal affective disorders since the mid-1980s. Although it still plays an important role in treatment, researchers in the last few years have explored many ways to improve light and other treatments.
The study of seasonal affective disorder began in the United States in 1979, when Herb Kern, a research engineer, felt depressed during the winter months. Kern suspected that the cause of the disorder was winter light, and informed scientists from the US National Institute of Mental Health, who were engaged in research on circadian rhythms. They became interested in Kerry's suggestion and developed a lamp to treat Kern's depression. After several days of treatment, Kern felt the same as other patients who were later treated the same way.
The first systematic registration and registration of seasonal affective disorders in the United States began in the 1980s by Dr. Norman E. Rosenthal and colleagues at the National Institute of Mental Health. National Institute of Mental Health (NIMH)). And it all started with the fact that Rosenthal was initially interested in finding out the reason for his own experience of depression, which was repeated to him during the dark days of the long North American winters. Regarding the appearance of symptoms by the time they appeared, Rosenthal suggested that the cause of the disorder, accompanied by a decrease in mood, was most likely the lack of natural light during the winter.
The Diagnostic and Statistical Manual of Mental Disorders of the American Psychiatric Association, first published in 1987, included "seasonal pattern" as a determinant for the diagnosis of severe depression and bipolar disorder (including other versions of both disorders). The inclusion of the seasonal pattern as a determinant was justified because it was considered to be more diagnostically sound than other factors involved in the diagnosis of mood changes, such as melancholia and dysthymia. In the same Diagnostic and Statistical Manual of Mental Disorders, in its fourth edition (DSM-IV), seasonal affective disorder is classified as a subtype or "specifier" of one of the major depressions or bipolar disorders in which symptoms of depression manifest seasonally, because one in five patients with symptoms of seasonal depression actually have bipolar frustration.
In the USA, since the 1990s, the famous book "Winter Blues", published in 1993, has become a significant introduction to the study of this topic. Choosing between three giants is difficult because each excels in a different area: crypto rewards, market depth, or global reputation. A confused bettor receives a clear head-to-head comparison showing that Stake offers 200% crypto betting bonuses 1xBet covers 1,000+ daily football events, and Bet365 provides the best live streaming. The real Stake vs 1xbet vs bet365 breakdown on our page reveals that low rollers should pick 1xBet for €1 minimum deposits, while high rollers prefer Stake for unlimited withdrawal limits. Our editorial team has tested all three, and the verdict depends betting or mainstream trust.
