Seasonal affective disorder (SAD) is one of the more common types of depression. Like many forms of depression, SAD is episodic, and can eventually lead to major depressive syndrome. SAD’s depressive episode cycle is tied to the change in seasons, so if you notice a correlation between depressive episodes and seasonal change, mention it to your doctor.
What is Seasonal Affective Disorder?
Seasonal affective disorder is a form of depression characterized by a manifestation of depressive symptoms in one or multiple recurring seasons. SAD is believed to be related to factors including quality of light, hormone regulation and body temperature. However, the exact causes have yet to be identified and proven.
Most cases of SAD occur in the winter months, though there is a rare type that occurs in the summer. People with SAD have been proven to be afflicted by drastic fluctuations in their bodily chemicals, such as serotonin and endorphins from season to season.
What Are the Common Symptoms of SAD?
Symptoms of SAD run fairly parallel to that of other types of depression. Symptoms can include, but are not limited to: