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Some colors people see late at night could cause signs of clinical（临床的）depression(沮丧). That was the finding of a study that builds on earlier study findings. They show that individuals(个人) who live or work in low levels of light overnight(整夜) can develop clinical depression. Doctors use the word “clinical depression” to describe severe form of depression. Signs may include loss of interest or pleasure in most activities, low energy levels and thoughts of death or suicide.
