Seasonal affective disorder

基本解释

However, this was also the case with seasonal affective disorder and postpartum depression, which are now formally recognized in the Diagnostic and Statistical Manual of Mental Disorders.
季节性情感障碍和产后抑郁症曾经也面临过同样的情况，但是，现在它们已经被正式收录到《精神病诊断与统计手册》中了。
If you find the winter months tough, particularly during December and January you may suffer from Seasonal Affective Disorder, which causes a low mood caused by the lack of light during winter.
如果你觉得冬天很难熬，特别是在十二月和一月份，那么你可能患上了‘季节性情绪失调’，这是由于冬日里缺少阳光而引起的情绪低落。
It also might help those with seasonal affective disorder, also thought of as the winter blues.
考虑到像冬季抑郁症之类的病症，这里的天气对患有季节性情绪失调的病人也可能会有所助益。

Those head doctors, they have a term for the effect a lack of sunshine has on your physiology: SAD, or seasonal affective disorder.
ENGADGET: Nothing quite as SAD as a phone without LEDs Mobile
The title of my first column is Seasonal Affective Disorder.
FORBES: Muni Bond Manager's Journal: Seasonal Affective Disorder

Seasonal affective disorder is a feeling of tiredness and sadness that some people have during the fall and winter when there is very little sunshine. The abbreviation is often used. SAD