Which type of depression occurs only during the fall and winter and is presumably related to decreased exposure to sunlight?

Seasonal Affective Disorder

Explanation:

Seasonal Affective Disorder -

It is the condition of depression, which is linked to the changing season, is referred to as seasonal affective disorder.

As the time period when the season begins to change i. e., at the beginning of some season or at the ending of some season.

The symptoms of Seasonal affective disorder is as follows -

1. lower energy

2. difficult to concentrate.

3. change in weight and appetite.

4. difficulty in sleeping.

5. less interest for any activity, etc.