(HealthDay News) -- Seasonal affective disorder (SAD) is characterized by a series of mood changes that appear year after year as the seasons change -- most often as the weather gets colder.
The American Academy of Family Physicians says symptoms of SAD often include:
- A sudden craving for sweet or starchy foods, changes in appetite or gaining weight.
- Lack of energy, feeling tired or sleeping more than usual.
- Anxiety, irritability or having difficulty concentrating.
- Unusual sensitivity to social rejection.
- Feeling guilty or hopeless.
