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Seasonal affective disorder

1-minute read

Seasonal affective disorder (SAD), often known as seasonal depression, is a mood disorder that has a seasonal pattern. It usually occurs each year at the same time, usually starting in autumn/winter and ending in spring, or early summer.

People with seasonal affective disorder may experience:

  • feeling tired, or lacking energy
  • sleeping too much
  • increase in appetite and cravings for carbohydrates
  • weight gain

Follow the links below to find trusted information on seasonal affective disorder.


myDr (Seasonal affective disorder)

Last reviewed: October 2016

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