NOVA

Winter Is Coming… And So Is Seasonal Depression

Clip: Season 45 | 3m 4s Video has closed captioning.

Gloomy, cloudy days and the transition from summer to winter are dreaded by many for the same reason: shorter days with less sunlight. Internal body clocks known as circadian rhythms help us adjust our sleep and wakefulness accordingly, but for some, the disruption might lead to a type of depression called Seasonal Affective Disorder.

Aired: 11/26/18

Rating: NR

Problems Playing Video? | Closed Captioning

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