While mania or hypomania often get the focus, depression is a significant and often debilitating aspect of bipolar disorder. Depressive episodes in bipolar disorder can be profound and go beyond ordinary sadness or feeling down.

Key Symptoms of Bipolar Depression

A bipolar depressive episode involves a sustained period of low mood lasting at least two weeks. It is marked by at least five of the following symptoms:

  • Profound Sadness and Hopelessness: Intense and pervasive sadness, emptiness, or feelings of despair. There may be a sense that things will never improve.
  • Loss of Interest or Pleasure: Activities that were once enjoyable no longer hold any appeal. There may be profound difficulty experiencing any positive emotions.
  • Fatigue and Changes in Energy: Feeling drained of energy, slowed down, or sluggish. Even small tasks can seem overwhelming.
  • Sleep Changes: Insomnia (difficulty sleeping), early morning wakening, or conversely, sleeping considerably more than usual.
  • Appetite and Weight Changes: Significant changes in appetite, either increased or decreased, potentially leading to unintentional weight loss or gain.
  • Difficulty Concentrating and Making Decisions: Feeling like your mind is in a fog, difficulty thinking clearly, remembering things, and a sense of indecisiveness.
  • Agitation or Restlessness: Feeling unable to settle or relax, pacing, hand-wringing, or other signs of physical agitation. Conversely, movements may feel significantly slowed.
  • Feelings of Worthlessness and Guilt: Excessive or inappropriate feelings of guilt. A harsh, critical inner voice may dominate a person’s thoughts.
  • Thoughts of Death or Suicide: In severe cases, thoughts of death, or suicidal ideation might occur.

Bipolar Depression vs. Unipolar Depression

While there’s overlap in symptoms, there are a few potential distinctions between bipolar depression and major depressive disorder (sometimes called unipolar depression):

  • Mood Reactivity: While people with unipolar depression often feel a persistent low mood, those with bipolar depression might sometimes experience temporary lifts in mood in response to positive events.
  • Agitation: Bipolar depression may feature more notable psychomotor agitation or restlessness.
  • Psychotic Features: In rare cases, severe depressive episodes in bipolar disorder might include psychotic symptoms such as hallucinations or delusions.

Mixed Episodes: When Depression and Mania Collide

Some people with bipolar disorder experience mixed episodes where symptoms of both depression and mania or hypomania occur simultaneously. This can be particularly difficult to understand and manage, often creating a state of intense agitation, irritability, and inner turmoil.

It’s Not Just a Low Mood

Bipolar depression can be incredibly debilitating, affecting relationships, work, and overall quality of life. It’s essential to recognize that it’s not about weakness, or simply “snapping out of it.”


The content provided herein is intended for informational purposes only and should not be considered a substitute for professional advice or treatment. If you or someone you know is struggling with mental health-related concerns, seek guidance from a qualified behavioral health professional. Click here to get help now. Any links are provided as a resource and no assurance is given as to the accuracy of information on linked pages.