Interactions between various factors can increase the risk of depression. additional conditions, such as bipolar disorder.environmental factors such as exposure to trauma or lack of social support.changes in the brain’s neurotransmitter levels.There are many possible causes, and sometimes, various factors combine to trigger symptoms.įactors that are likely to play a role include: The medical community does not fully understand the causes of depression. This condition seems to particularly affect people who live in countries with long or severe winters. It lifts during the rest of the year and in response to light therapy. Less commonly, it may follow other seasonal patterns. Previously known as seasonal affective disorder (SAD), this type of depression usually occurs during the winter and fall months, when there is less daylight. Major depressive disorder with seasonal pattern Anyone who experiences ongoing depression after delivery should seek medical attention. There is no single cause for this type of depression, and it can persist for months or years. Postpartum depression, or postnatal depression, is more severe. Postpartum depressionĪfter giving birth, some people experience a brief period of sadness or heightened emotions that some people call the “baby blues.” This usually goes away in a few days to a few weeks. Persistent depressive disorderĪlso known as dysthymia, persistent depressive disorder causes symptoms that last for at least 2 years.Ī person living with this disorder may have episodes of major depression as well as milder symptoms that do not meet the criteria for major depressive disorder.
Treatment usually involves medication and psychotherapy. They may lose interest in activities they used to enjoy. Major depressionĪ person living with major depression experiences a constant state of sadness.
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