Bipolar Disorder: Understanding Mood Swings
Bipolar disorder affects approximately 1.3 million people in the UK, causing significant shifts in mood, energy, and activity levels that can severely impact daily life. Formerly known as manic depression, this complex mental health condition requires understanding, proper diagnosis, and ongoing management. With appropriate treatment and support, people with bipolar disorder can lead fulfilling, productive lives.
What Is Bipolar Disorder?
Bipolar disorder is a mental health condition characterised by extreme mood swings that include emotional highs (mania or hypomania) and lows (depression). These mood episodes can last for weeks or months, significantly impacting daily functioning, relationships, work performance, and overall quality of life. Unlike normal mood fluctuations, bipolar mood swings are intense, prolonged, and often disruptive.
Types of Bipolar Disorder
Bipolar I Disorder: Characterised by manic episodes lasting at least 7 days, or by manic symptoms so severe that immediate hospital care is needed. Depressive episodes typically last at least 2 weeks. Bipolar I involves full-blown mania which can include psychotic symptoms.
Bipolar II Disorder: Involves a pattern of depressive episodes and hypomanic episodes, but not the full-blown manic episodes that are typical of Bipolar I. Hypomania is a less severe form of mania that doesn’t typically cause the significant problems in daily functioning that mania does.
Cyclothymic Disorder (Cyclothymia): Numerous periods of hypomanic symptoms and periods of depressive symptoms lasting for at least 2 years. However, the symptoms do not meet the diagnostic requirements for a hypomanic episode and a depressive episode.
Recognising the Symptoms
Manic Episodes
During manic episodes, individuals may experience:
- Increased energy, activity, and restlessness
- Euphoric or excessively “high” mood, or extreme irritability
- Racing thoughts and rapid speech
- Decreased need for sleep without feeling tired
- Grandiose beliefs about abilities or powers
- Poor judgment and impulsive behaviour
- Spending sprees, sexual indiscretions, or risky business decisions
- Increased distractibility
- In severe cases, psychotic symptoms such as delusions or hallucinations
Hypomanic Episodes
Hypomania is similar to mania but less severe. The person may feel very good, be highly productive, and function well. However, hypomania can still lead to poor decisions and can progress to full mania or be followed by a depressive episode.
Depressive Episodes
During depressive episodes, individuals may experience:
- Persistent sad, anxious, or empty mood
- Feelings of hopelessness or pessimism
- Loss of interest or pleasure in activities once enjoyed
- Decreased energy, fatigue, and feeling slowed down
- Difficulty concentrating, remembering, or making decisions
- Changes in sleep patterns (insomnia or oversleeping)
- Changes in appetite and weight
- Thoughts of death or suicide, or suicide attempts
- Physical symptoms that don’t respond to treatment
Causes and Risk Factors
Bipolar disorder is not caused by a single factor. Research suggests that several factors may contribute:
- Genetic factors: Bipolar disorder tends to run in families. Having a first-degree relative with bipolar disorder increases the risk.
- Brain structure and function: Brain imaging studies show subtle differences in the brains of people with bipolar disorder.
- Environmental factors: Stress, trauma, significant life changes, or substance abuse can trigger episodes in susceptible individuals.
- Neurotransmitter imbalances: Imbalances in brain chemicals including serotonin, dopamine, and norepinephrine play a role.
Getting a Diagnosis
Diagnosing bipolar disorder requires a comprehensive psychiatric evaluation by a qualified mental health professional. The process typically includes:
- Detailed history of symptoms, including their duration and severity
- Family history of mental health conditions
- Medical examination to rule out physical causes
- Possibly blood tests or brain scans to exclude other conditions
- Mood charting to track patterns over time
Accurate diagnosis is crucial because bipolar disorder is often misdiagnosed as depression, ADHD, or borderline personality disorder, leading to inappropriate treatment.
