It’s not known what causes depression. As with many mental disorders, various factors may be involved, such as having close relatives with history of mood disorders, imbalance of brain chemicals known as neurotransmitters and hormonal changes.

Symptoms of depressive disorders include feelings of sadness, fatigability, difficulty concentrating, poor sleep with early morning wakening, poor appetite, loss of interest and confidence, difficulty in engaging in daily activities and relationship, negative thinking and self harm idea.

Depressive disorders often go undiagnosed and undertreated. Symptoms are often regarded as understandable given current social circumstances. Though it may be true in many cases, people should consider interventions that may help relieve the symptoms and allow them to cope better. Management of depressive disorders involves antidepressants and talking therapy such as cognitive behavioral therapy.