Condition Bipolar disorder
Bipolar disorder: it’s not just the lows
Bipolar disorder is often mistaken for depression because the low phase feels identical — the same heaviness, hopelessness, and exhaustion. What sets it apart is the other side: periods of unusually high, energized, or irritable mood (mania or hypomania) that swing against the lows. Those highs are frequently missed, sometimes for years, because they can feel productive rather than problematic.
If your low moods have ever alternated with stretches of racing energy, little need for sleep, or uncharacteristically impulsive decisions, the bipolar test — modeled on the validated Mood Disorder Questionnaire (MDQ) approach — is a private, five-minute way to check whether that pattern is worth raising with a professional.
Take the bipolar test
What bipolar disorder can look like
Bipolar disorder involves both a low phase and a high phase. The high phase (mania or hypomania) often includes:
- Unusually elevated, euphoric, or irritable mood
- Needing far less sleep than usual without feeling tired
- Racing thoughts or a mind that won’t slow down
- Talking faster or more than usual
- A surge of energy or new projects taken on all at once
- Impulsive decisions — spending, risk-taking, or foolish choices out of character
- Feeling unusually self-confident or invincible
Read the full guide to bipolar disorder symptoms →
Explore the types of bipolar disorder →
When to seek help
- Low moods have ever alternated with distinct periods of high energy, reduced sleep, or impulsivity.
- An antidepressant seemed to make things worse or triggered a "high" period.
- Mood swings are disrupting work, relationships, or finances — or you have any thoughts of self-harm (call or text 988).
Questions worth asking a clinician
- Could my history of highs and lows point to bipolar disorder rather than depression alone?
- Would a mood stabilizer be safer for me than an antidepressant alone?
- How can I track my mood over time to spot the pattern more clearly?
- What does treatment for bipolar disorder actually involve?
Bipolar disorder by the numbers
2.8%
of U.S. adults had bipolar disorder in the past year
NIMH
4.4%
lifetime prevalence among U.S. adults
NIMH
≈83%
of past-year cases rated "serious" — the highest of any mood disorder
NIMH
Sources: National Institute of Mental Health (NIMH) / Harvard NCS-R.
Frequently asked questions
What are the signs of bipolar disorder?
Bipolar disorder involves both lows and highs. The high phase can include an elevated or irritable mood, needing far less sleep without feeling tired, racing thoughts, fast speech, grandiosity, and impulsive or risky decisions; the low phase looks like depression. The pattern of distinct episodes over time is key.
What causes bipolar disorder?
Bipolar disorder has a strong genetic and biological basis, involving differences in brain function and chemistry. Stress, sleep disruption, and substance use can trigger episodes, but they do not cause the underlying condition.
Can someone with bipolar disorder live a normal life?
Yes. Many people with bipolar disorder live full, stable lives. Treatment — usually a mood stabiliser alongside therapy and consistent routines — makes that far more achievable. Stopping medication without medical guidance is a common trigger for relapse.
Is bipolar disorder curable?
Bipolar disorder is a lifelong condition rather than something that is cured, but it is very manageable. With ongoing treatment, most people control their symptoms well and have long stretches of stability.
How is bipolar disorder treated?
Treatment centres on mood-stabilising medication, combined with therapy, psychoeducation, sleep and routine management, and monitoring for early warning signs. Because antidepressants alone can trigger mania, treatment is usually managed by a psychiatrist.