Bipolar Affective Disorder


Bipolar affective disorder, or manic-depressive illness (MDI), is a common, severe, and persistent mental illness. This condition is a serious lifelong struggle and challenge.

Signs and symptoms

Bipolar affective disorder is characterized by periods of deep, prolonged, and profound depression that alternate with periods of an excessively elevated or irritable mood known as mania.

Manic episodes are feature at least 1 week of profound mood disturbance, characterized by elation, irritability, or expansiveness (referred to as gateway criteria). At least 3 of the following symptoms must also be present :

  • Grandiosity
  • Diminished need for sleep
  • Excessive talking or pressured speech
  • Racing thoughts or flight of ideas
  • Clear evidence of distractibility
  • Increased level of goal-focused activity at home, at work, or sexually
  • Excessive pleasurable activities, often with painful consequences

Hypomanic episodes are characterized by an elevated, expansive, or irritable mood of at least 4 consecutive days’ duration. At least 3 of the following symptoms are also present:

  • Grandiosity or inflated self-esteem
  • Diminished need for sleep
  • Pressured speech
  • Racing thoughts or flight of ideas
  • Clear evidence of distractibility
  • Increased level of goal-focused activity at home, at work, or sexually
  • Engaging in activities with a high potential for painful consequences

Major depressive episodes are characterized as, for the same 2 weeks, the person experiences 5 or more of the following symptoms, with at least 1 of the symptoms being either a depressed mood or characterized by a loss of pleasure or interest[2] :

  • Depressed mood
  • Markedly diminished pleasure or interest in nearly all activities
  • Significant weight loss or gain or significant loss or increase in appetite
  • Hypersomnia or insomnia
  • Psychomotor retardation or agitation
  • Loss of energy or fatigue
  • Feelings of worthlessness or excessive guilt
  • Decreased concentration ability or marked indecisiveness
  • Preoccupation with death or suicide; patient has a plan or has attempted suicide