Bipolar disorder, also known as manic-depressive illness, is a brain disorder that causes unusual shifts in mood, energy, activity levels, concentration, and the ability to carry out day-to-day tasks. These shifts are more severe than the typical ups and downs everyone experiences. Instead, they involve distinct episodes of mania and depression.
Mania is characterized by an abnormally elevated, expansive, or irritable mood. During a manic episode, individuals may experience:
- Increased energy and activity
- Racing thoughts
- Decreased need for sleep
- Inflated self-esteem or grandiosity
- Talkativeness
- Impulsivity and risky behaviors (e.g., reckless spending, sexual indiscretions, poor business investments)
Depression, on the other hand, involves persistent feelings of sadness, hopelessness, and loss of interest or pleasure. Symptoms of a depressive episode include:
- Persistent sadness or emptiness
- Loss of interest or pleasure in activities
- Fatigue and decreased energy
- Difficulty concentrating or making decisions
- Changes in appetite or weight
- Sleep disturbances (insomnia or excessive sleeping)
- Feelings of worthlessness or guilt
- Thoughts of death or suicide
The exact cause of bipolar disorder is not fully understood, but it is likely a combination of genetic, biological, and environmental factors. Research suggests that imbalances in brain chemicals (neurotransmitters), such as serotonin, norepinephrine, and dopamine, play a significant role. Having a family history of bipolar disorder increases the risk of developing the condition. Stressful life events can also trigger episodes in susceptible individuals.
There are several types of bipolar disorder, including:
- Bipolar I Disorder: Defined by manic episodes lasting at least 7 days, or manic symptoms that are so severe that the person needs immediate hospital care. Depressive episodes typically occur as well, lasting at least 2 weeks.
- Bipolar II Disorder: Defined by a pattern of depressive episodes and hypomanic episodes (less severe than mania).
- Cyclothymic Disorder: Defined by numerous periods of hypomanic symptoms and depressive symptoms lasting for at least 2 years (1 year in children and adolescents), but the symptoms are not severe enough to meet the diagnostic criteria for manic or depressive episodes.
Diagnosis of bipolar disorder typically involves a comprehensive psychiatric evaluation, including a review of symptoms, medical history, and family history. There are no specific lab tests to diagnose bipolar disorder, but medical tests may be conducted to rule out other conditions with similar symptoms.
Bipolar disorder is a chronic condition that requires long-term management. Treatment typically involves a combination of medication, psychotherapy, and lifestyle modifications.
Medication, such as mood stabilizers (e.g., lithium, valproate, lamotrigine), antipsychotics (e.g., quetiapine, risperidone), and antidepressants, can help to regulate mood swings and prevent episodes.
Psychotherapy, such as cognitive behavioral therapy (CBT), interpersonal and social rhythm therapy (IPSRT), and family-focused therapy, can help individuals cope with the symptoms of bipolar disorder, improve relationships, and develop coping skills.
Lifestyle modifications, such as maintaining a regular sleep schedule, eating a healthy diet, exercising regularly, and avoiding alcohol and drugs, can also help to manage bipolar disorder.
With appropriate treatment and support, individuals with bipolar disorder can lead fulfilling and productive lives.