“There's been a fair bit of research since about the 1980s supporting light therapy as being effective for seasonal kinds of depression, ” psychotherapist Rakhi Chand told The Guardian.

“20 世纪 80 年代以来，有相当多的研究支持光疗法对季节性抑郁症有效。” 心理治疗师瑞奇·昌德在接受《卫报》采访时表示。