Several recent studies have suggested that winter-born babies are more likely than summer ones to develop conditions such as schizophrenia, depression and seasonal affective disorder (SAD).

近来，几项研究显示，冬季新生儿比夏季新生儿更容易患上精神分裂症、抑郁症和季节情感紊乱症(SAD)。

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If you suffer from seasonal affective disorder (SAD), St. John's wort is a useful complement to light therapy.

如果你患有周期性的情感失控，圣约翰草汁绝对是一种轻微治疗的有用的药物。

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You may have the winterblues, or seasonal affective disorder (SAD).

也许你患上了冬季抑郁或者是季节性情感抑郁症（SAD）。

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Those head doctors, they have a term for the effect a lack of sunshine has on your physiology: SAD, or seasonal affective disorder.

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And finally, those who suffer from seasonal affective disorder (SAD) or other mental health conditions can find the darkness of winter especially difficult, making them less productive and interested in work.

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Seasonal Affective Disorder, or SAD, was first described and named by the South African psychiatrist Norman Rosenthal in 1984.

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