Answers to Common Depression and Anxiety Questions

Premier Health providers answer frequently asked questions about depression and anxiety.

What is seasonal affective disorder?

Dr. Allen discusses seasonal affective disorder. Click play to watch the video or read the transcript.

What is seasonal affective disorder?

Seasonal affective disorder is a disorder that affects a lot of folks around here, mostly because of the decrease in sunlight that you gives you kind of a dysphoric mood and it’s essentially a low grade depression with the change of seasons, very common going from summer, fall and to the winter months.


Seasonal affective disorder – known as SAD – is a type of depression that can be brought on by certain seasons, according to the American Academy of Family PhysiciansOff Site Icon (AAFP).

The most common type of SAD is called winter-onset depression, which has symptoms that usually start in late fall and go away by the time summer arrives. Winter-onset SAD affects 90 percent of all the people who have SAD, according to the AAFP.

Summer-onset depression is much less common and lasts from late spring through the winter, according to the AAFP.

It is believed that the amount of daylight during different times of the year is what causes SAD, which affects between 4 percent and 6 percent of Americans, according to the AAFP.

For more about information seasonal affective disorder, talk with your physician.

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Source: Joseph Allen, MD, Family Medicine of Vandalia; Chandan Gupta, MD, Monroe Medical Center; Anessa Alappatt, MD, Fairborn Medical Center; Heather Markwell, MD, Premier Health Family Medicine