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Persistent depressive disorder (dysthymia)
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Reviewed by
Stephanie Collier, MD, MPH,
Contributor; Editorial Advisory Board Member, Harvard Health Publishing
What is it?
Persistent depressive disorder (dysthymia) is a form of depression. It may be less severe than major depression, but — as the name suggests — it lasts longer. Many people with this type of depression describe having been depressed as long as they can remember, or they feel they are going in and out of depression all the time.
The symptoms of persistent depressive disorder are similar to those of major depression. In this disorder, the long duration is the key to the diagnosis, not the intensity of symptoms. As with major depression, mood may be low (or irritable in children and adolescents). An individual with persistent depressive disorder may feel less pleasure and a lack of energy. He or she may feel relatively unmotivated and disengaged from life. Appetite and weight can increase or decrease. The person may sleep too much or have trouble sleeping. Indecisiveness, pessimism and poor self-image may also be present.
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About the Reviewer

Stephanie Collier, MD, MPH,
Contributor; Editorial Advisory Board Member, Harvard Health Publishing
Disclaimer:
As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles.
No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.
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