As winter approaches, shorter days spark a cascade of changes within the brains of animals. As a result, groundhogs retreat to their burrows for hibernation, weasels’ coats turn from brown to white, and birds cease their singing. And scientists are finding that seasonal behavioral changes similarly happen for some humans. Kelly Rohan digs into what we know about seasonal affective disorder. [Directed by Avi Ofer, narrated by Bethany Cutmore-Scott, music by Cem Misirlioglu].
随着冬季临近，白天渐短在动物大脑中引发连锁反应。土拨鼠退入洞穴冬眠，鼬鼠皮毛由棕转白，鸟儿停止鸣唱。科学家发现，某些人类同样会出现季节性行为变化。凯莉·罗韩（Kelly Rohan）深入探讨了我们对季节性情感障碍的认知。
