A joint research of the Kyoto University and Shiga University showed a worse form of being affected by a gloomy weather. The study released Thursday says people in Japan who committed suicide by train have often done so following rainy days.
According to the study, the researchers have “observed an increased proportion of railway suicide attempts after several days without sunlight.” The joint medical science team of both universities has linked the suicide incidents at train stations and the weather prior to people’s deaths. Although the weather on the day of the incident has no effect, researchers discovered that 7 days of gloomy weather have led to higher incidents of taking one’s own life.
Most people would be predisposed to Seasonal Affective Disorder (SAD) during gloomy days, thus making them feel blue. The research team led by Hiroshi Kadotani of the Shiga Universtiy Medical Science evaluated 971 incidents of suicide. The study focused on three of Japan’s main commercial areas – Tokyo, Osaka, and Kanagawa – from 2002 until 2006, and found that people in these areas have even gone beyond feeling depressed. Worse, people who might be having SAD have actually acted upon ending their own life.
According to Professor Kadotani, “Rather than the weather on the day (of the suicides), having not been exposed to sunlight during the preceding days may have a greater influence on the symptoms of depression and decline in mood.” This may be because prolonged lack of exposure to sunlight due to bad weather usually affects brain activity affecting a person’s mood. Perhaps, this kind of SAD is a ‘suicide activity days.’
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