What is a Mood Disorder?

A mood disorder is a mental health condition that primarily affects a person's persistent emotional state. Mood disorders can dramatically impact daily functioning and quality of life. The two main categories are depressive disorders and bipolar disorders.

Types of Mood Disorders

The most common mood disorders include:

  • Major Depressive Disorder: Characterized by persistent feelings of sadness, hopelessness, and loss of interest in usually enjoyable activities. Other symptoms can include changes in sleep, appetite, energy, and trouble concentrating.
  • Persistent Depressive Disorder: A depressed mood that lasts for at least two years with less severe symptoms than major depression. Also known as dysthymia.
  • Bipolar I Disorder: Cycles between extreme highs (mania) and lows (depression). Manic episodes may include risky behavior, impulsiveness, and psychosis.
  • Bipolar II Disorder: Cycles between less severe mania (hypomania) and depression.
  • Cyclothymic Disorder: Chronic, fluctuating mood disturbances between hypomania and depression that don't reach full diagnostic criteria for bipolar I or II.
  • Seasonal Affective Disorder (SAD): A type of depression correlating with seasonal changes, typically worsening during winter months.

Causes

While the exact causes are unclear, mood disorders likely involve a complex interaction between:

  • Genetics and family history
  • Stress
  • Brain structure and function, including neurotransmitter imbalances
  • Hormones
  • Substance abuse

Other potential risk factors include personality traits, social environment, trauma, and medical conditions.

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Getting Help

If you think you may have a mood disorder, seek professional help. Connect with a mental health professional or join a support group. Effective treatments exist, including psychotherapy, medications, brain stimulation therapy, light therapy, and lifestyle changes. With proper treatment and self-care, many people learn to successfully manage mood disorders and regain joy in life.

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