Depression is a serious medical condition where an imbalance in the neurotransmitters and hormones of the brain alters moods, emotions,thoughts, physical health. There are different types of depressive disorders
such as
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Major depression disorder
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Persistent depressive disorder (Dysthymia)
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Premenstrual dysphoric disorder
Symptoms of depressive disorder must present in most of the day, nearly every day and affect how you handle daily life activities.