What Is Bipolar Disorder?
Bipolar disorder involves distinct episodes of significant changes in mood, energy, activity, thinking, and behavior. It is not simply being emotional, having a bad day followed by a good day, or experiencing ordinary shifts in mood.
The defining features involve episodes of mania or hypomania, often alongside episodes of depression. The pattern, duration, severity, and impact of those episodes are central to diagnosis.
What Is Mania?
Mania is a period of abnormally elevated, expansive, or irritable mood accompanied by a marked increase in energy or activity. It can involve decreased need for sleep, rapid speech, racing thoughts, increased goal-directed activity, grandiosity, distractibility, impulsive or high-risk behavior, and significant changes from the person's usual functioning.
Mania can cause severe impairment and may require hospitalization. Psychotic symptoms can also occur in mania.
Decreased need for sleep is not the same as insomnia. With insomnia, a person may want to sleep but cannot. During mania, a person may sleep very little and still feel unusually energized.
What Is Hypomania?
Hypomania involves a similar type of change in mood, energy, and activity, but it is less severe than mania and does not by itself cause the same level of marked impairment or require hospitalization.
Hypomania can feel productive or positive to the person experiencing it, which can make it easy to overlook. The clinical significance often becomes clearer when the broader pattern includes significant depressive episodes or consequences from changes in judgment and behavior.
Bipolar I, Bipolar II, and Other Bipolar Disorders
Bipolar I Disorder
Bipolar I is defined by at least one manic episode. Major depressive episodes commonly occur, but a depressive episode is not required for the diagnosis.
Bipolar II Disorder
Bipolar II involves at least one hypomanic episode and at least one major depressive episode, without a history of full mania. Bipolar II is not simply “milder bipolar.” Depression can be severe and highly impairing.
Cyclothymic Disorder
Cyclothymic disorder involves recurring periods of hypomanic and depressive symptoms that do not meet full episode criteria but persist over a longer pattern.
Other Specified and Unspecified Bipolar and Related Disorders
These categories are used when clinically significant bipolar-related symptoms are present but do not fit the full criteria for the primary bipolar diagnoses.
Bipolar II → Hypomania + Major Depression
What Are Mixed Features?
Mood episodes do not always fit neatly into “up” or “down.” A person may experience depressive symptoms alongside increased energy, agitation, racing thoughts, or other features associated with mania or hypomania. Mixed presentations can be particularly distressing and require careful assessment.
How Bipolar Disorder Is Assessed
Diagnosis depends on the history and pattern of mood episodes over time, not simply how someone feels during one appointment. Clinicians consider duration, sleep, energy, behavior, judgment, impairment, family history, medication effects, substance use, medical conditions, and previous depressive episodes.
ADHD, trauma, anxiety, personality-related emotion dysregulation, substance use, and unipolar depression can sometimes resemble aspects of bipolar disorder. Antidepressant or substance effects can also complicate the picture.
How Treatment Can Help
Bipolar disorder is typically treated with medication as a central component, often combined with psychotherapy and lifestyle supports. Medication decisions should be made with a qualified prescriber.
Psychotherapy can support mood monitoring, sleep and routine stability, relapse prevention, coping, medication adherence, relationship repair, and recognizing early warning signs. Psychoeducation is especially important because understanding the pattern can help people respond earlier to changes.
How I Approach Bipolar Disorder at Wayside
At Wayside, I focus on helping you understand your specific pattern rather than treating every strong emotion as a bipolar symptom.
We may work on mood tracking, routines, sleep, stress, early warning signs, relationships, coping, accountability, and the impact that episodes have had on your sense of self or on people you care about.
CBT, DBT-informed skills, ACT, mindfulness, Solution-Focused Therapy, Narrative Therapy, and trauma-informed care may be used as appropriate alongside psychiatric treatment.
When to Consider Professional Support
Professional evaluation is important when there are distinct periods of unusually elevated or irritable mood, major changes in energy or activity, decreased need for sleep, impulsive or risky behavior, psychotic symptoms, or recurrent depression.
Urgent evaluation is appropriate when symptoms create immediate safety concerns, severe impairment, inability to care for yourself, or loss of contact with reality.
A Few Things You Can Try
Track patterns, not just moods
Note sleep, energy, activity, irritability, impulsivity, and functioning along with mood.
Protect sleep
Consistent sleep and wake times can be important for mood stability.
Notice early changes
Identify the first signs that typically appear before a larger shift in mood.
Involve trusted support when appropriate
People close to you may notice meaningful changes before you do.
Do not make medication changes on your own
Discuss concerns, side effects, or questions with the prescribing clinician.
You Don’t Have to Figure It Out Alone
Information can help you understand patterns, but a webpage cannot determine exactly what is happening for you or which treatment is most appropriate.
You do not need to diagnose yourself before beginning therapy. You can start with what you are experiencing, what feels difficult, or what you want to understand differently.
Come with what you’re experiencing. We can begin there.
Sources & Further Reading
Last reviewed: September 2026
If you are experiencing a mental health emergency, believe you may be in immediate danger, or are concerned about your immediate safety, contact local emergency services or an appropriate crisis service in your area.