Bipolar 1 vs. Bipolar 2: Key Differences in Symptoms, Episodes, and Treatment

Understanding Bipolar 1

What Is Bipolar 1 Disorder?

Individuals diagnosed with bipolar 1 disorder have had manic episodes that last for at least seven days or symptoms that are so serious that they require acute psychiatric stabilization.

Depressive episodes usually last at least two weeks. Individuals can have mania and depressive symptoms together. Having four or more episodes of mania or depression within a year is termed “rapid cycling.” 

Individuals are at an increased risk of harmful behaviors, and their ability to function is affected. Additionally, there is the potential that mania can create a break from reality – when this happens, it is called psychosis.

How Is Hypomania Different From Mania?

Hypomania is a less intense form of mania that may still impact daily life. 

Common triggers include sleep deprivation, substance use, or significant life changes. Symptoms can include:

• Elevated mood or energy
• Distractibility and fidgeting
• Irritability or increased goal-directed activity

​When Does Bipolar 1 Develop?

Typically, bipolar 1 develops when an individual is in their 20s.

However, usually an individual is diagnosed with bipolar 1 between the ages of 30 and 35. While symptoms can occur earlier, a delay of approximately 10 years between the first symptoms and diagnosis is possible.

​Is Bipolar 1 a Mood Disorder?

Yes, bipolar 1 is a mood disorder that is associated with intense mood swings.

Due to the extreme change in moods, bipolar 1 is classified as one of several mood disorders.

What Is The First Red Flag Of Bipolar 1 Disorder?

Typically, the first red flag of bipolar disorder 1 is a change in sleep patterns.

An unexplainable, decreased need for sleep coupled with a high amount of energy without feeling fatigued is a red flag of bipolar 1. For example, if an individual sleeps three to four hours each night for several nights in a row and still feels energized, they may be showing an early symptom of the disorder.

Other red flags include:

• Fast-paced shifts in self-confidence
• Increase in risk-taking 
• Rapid thoughts or speech
• Reacting in ways that don’t fit the situation

Understanding Bipolar 2

What Does Bipolar 2 Look Like?

An individual with Bipolar 2 disorder experiences persistent elevated moods (hypomania) from four days to a week. 

It is important to note that bipolar 2 is not a milder form of bipolar 1 disorder. It has different diagnostic criteria and is treated as such.

Those diagnosed with bipolar 2 will have depressive states and hypomania. However, they don’t experience a full manic episode like those with bipolar 1. They do experience chronic depression more than those with bipolar 1. Many individuals with bipolar 2 disorder experience extended periods in a persistent, low-grade depressive state. Their ability to function and maintain their daily routine usually isn’t affected, but they face an increased risk of engaging in risky behaviors.

Can Someone With Bipolar 2 Experience Full Manic Episodes?

No, those diagnosed with bipolar 2 disorder don’t experience full manic episodes.

Instead of full manic episodes, those with bipolar 2 experience hypomania. The symptoms of hypomania are less severe than those of bipolar 1. Additionally, hypomania decreases the risk of experiencing psychosis.

What Triggers Bipolar 2 Episodes?

Several factors can trigger bipolar 2 episodes, including:

• Stress: Stressful events like losing a loved one, a job, or a friendship can increase the risk of mood shifts.
• Hormonal changes: Shifts in hormones such as estradiol, testosterone, and progesterone can affect mood shifts
• Specific drugs: Certain drugs such as antidepressants and corticosteroids (prednisone) can create a shift in mood to mania. Supplements can also affect mood shifts.
• Weather changes: Seasonal shifts in temperature, atmospheric pressure, rainfall, and cloud cover can trigger mood changes.
• Sleep disruptions: There is a relationship between bipolar disorder and sleep. Bipolar disorder can disrupt sleep, and a lack of sleep can trigger bipolar symptoms. 

Additionally, you can experience a mood shift without a specific event or reason. This can make it difficult to predict when an episode can happen.

Is Bipolar 2 Hard to Live With?

Yes, the symptoms of bipolar 2 can be challenging on relationships and daily functioning.

The extreme mood shifts between hypomania and depression can make it difficult to maintain friendships, romantic relationships, and the responsibilities of a job or school.

Does Bipolar 2 Get Worse With Age?

Yes, bipolar 2’s symptoms can worsen with age.

As individuals age, they may experience changes in the frequency and severity of their symptoms.

The factors linked with worsening episodes include:

• Greater Severity: The intensity of mood episodes often increases, leading to significant disruptions in daily functioning and personal and work relationships.
• Prolonged Episodes: Since mood swings can last longer, the time spent in hypomania or depression will last longer.
• Increased frequency: As individuals age, their risk of frequent episodes increases. These episodes include depression and hypomania.

Symptoms can also become more severe if they are left untreated.

Key Differences Between Bipolar 1 vs Bipolar 2

What Is The Difference Between Bipolar 1 And Bipolar 2?

The length and severity of mania and depression are the key differences between bipolar 1 and bipolar 2 disorder. 

To receive a bipolar 1 disorder diagnosis, a manic episode must last 7 days or more. Individuals diagnosed with bipolar 1 disorder may not experience a major depressive episode. 

Manic episodes usually include the following symptoms:

• High energy
• Restlessness
• Trouble concentrating
• Feelings of euphoria (extreme happiness)
• Behaviors that can lead to harmful consequences
• Poor sleep

The symptoms of a manic episode may require acute psychiatric stabilization.

Those diagnosed with Bipolar 2 can experience a major depressive episode that lasts approximately two weeks. They must also experience at least one hypomanic episode.

The symptoms of bipolar 1 and bipolar 2 can develop into harmful behaviors that can benefit from psychoeducation and recreation-based support.  Ocean View Psychiatric Health Facility provides intense, short-term psychiatric stabilization to support symptom management. 

What Is More Serious, Bipolar 1 Or Bipolar 2?

Mental health professionals consider bipolar 1 more serious than bipolar 2.

The difference in the severity of the symptoms between the two types of bipolar disorders leads to bipolar 1 being recognized as the more serious of the two.

How Is Episode Severity Different Between The Two Types?

Individuals diagnosed with bipolar 1 experience full manic episodes, which are considered more dangerous than hypomanic episodes. Full manic episodes increase the risk of risky behavior and can have psychotic features. 

Bipolar 1 symptoms can include psychotic symptoms such as:

• Hallucinations
• Delusions

The symptoms of bipolar 2 are disruptive, but those diagnosed with bipolar 2 do not experience a full manic episode. This also decreases the risk of experiencing psychotic symptoms.

Both types of bipolar disorder include depressive symptoms.

Can Bipolar 1 Turn Into Bipolar 2 Over Time?

Yes, research has shown that bipolar 1 can shift to bipolar 2 if there’s an episode of a full manic episode shifting to a hypomanic episode with a major depressive episode.

The study“Progression along the Bipolar Spectrum: A Longitudinal Study of Predictors of Conversion from Bipolar Spectrum Conditions to Bipolar 1 and 2Disorders”  discovered the possibility of bipolar disorders shifting over time. 

Can Someone Have Both Bipolar 1 and Bipolar 2?

No, because bipolar 1 and bipolar 2 are separate diagnoses, an individual can’t have both.

The distinct severity of their symptoms classifies bipolar 1 and Bipolar 2.

Differences in Symptoms of Bipolar 1 vs Bipolar 2

What Symptoms Distinguish Mania From Hypomania?

The key difference between hypomania and mania is: Hypomania’s symptoms are less intense than the symptoms of mania.

Mania is characterized by episodes that can lead to high-risk behaviors and emotional dysregulation.

Symptoms may include:

• Racing thoughts, impulsivity, and grandiosity
• Increased energy, rapid speech, or delusions
• Intense anxiety, irritability, or hallucinations
• Euphoric feelings

Individuals experiencing severe mania may benefit from inpatient treatment for bipolar disorder to stabilize symptoms in a secure, supportive environment.

Hypomania is a less intense form of mania that may still impact daily life. Common triggers include sleep deprivation, substance use, or significant life changes. 

Symptoms can include:

• Elevated mood or energy
• Distractibility and fidgeting
• Irritability or increased goal-directed activity

What Are Typical Depressive Symptoms In Bipolar 1 vs Bipolar 2?

The difference in severity of the symptoms of depressive episodes between bipolar 1 and bipolar 2 is:

Bipolar 1 symptoms include:

• Intense feelings of sadness and emptiness
• Feelings of guilt
• Feeling worthless
• Fatigue
• Trouble concentrating
• Significant weight loss or gain depending on appetite
• Diminished pleasure in activities
• Disrupted sleep

During a depressive episode, the symptoms last throughout most of the day, almost every day, for approximately two weeks.

Bipolar 2 depressive symptoms are:

• Persistent feelings of sadness
• Loss of interest in activities and hobbies an individual enjoyed
• Trouble concentrating
• Changes in sleep patterns
• Changes in appetite

Individuals diagnosed with bipolar 2 experience these symptoms for weeks or months.

What Symptoms Do People Mistake For Bipolar 1 vs 2?

Generally, the symptoms most people mistake for bipolar 1 versus bipolar 2 are the differences between manic, hypomanic, and depressive episodes.

Unlike bipolar 1, those with bipolar II experience hypomanic episodes, which are less severe than full manic episodes. Additionally, those diagnosed with bipolar 2 experience at least one major depressive episode, whereas those with bipolar I do not.

Differences in Episodes of Bipolar 1 vs Bipolar 2

How Long Do Manic Versus Hypomanic Episodes Last?

Manic episodes can last for at least a week, whereas hypomanic episodes can last up to approximately four days.

For someone to be diagnosed with bipolar 1, they must experience a full manic episode for at least a week. If left untreated, manic episodes can last from four to 13 months.

A hypomanic episode must last at least four consecutive days and be noticeable throughout the day. 

How Frequently Do Mood Episodes Occur In Each Type?

The frequency of mood episodes varies by individual.

Some may have a few episodes during their lifetime, while others may have several episodes during a year. Stressors, substance use, or the seasons may affect episode frequency. 

How Do Mixed Episodes Present In Bipolar 1 vs Bipolar 2?

When an individual is experiencing a mixed episode, the symptoms of a depressive episode and a manic or hypomanic episode are occurring at the same time.

• During a depressive episode, the main symptoms are those associated with that episode, but asymptomatic manic symptoms are also present. 
• On the other hand, you can have manic symptoms while also experiencing depressive symptoms. 

Common Misunderstandings of Bipolar 1 vs Bipolar 2

Does Bipolar 1 Lead to Severe Depression?

Yes, those with bipolar 1 can experience the symptoms of severe depression.

The major depressive episodes can lead to harmful thoughts that can require acute psychiatric crisis care. Treatment, like the short-term psychiatric crisis stabilization that Ocean View Psychiatric Health Facility provides, helps stabilize and manage major depressive symptoms.

Is Bipolar 2 Easier to Manage?

Treatment for bipolar 2 isn’t necessarily easier than treatment for bipolar 1.

While those with bipolar 2 experience less intense, hypomanic episodes rather than full manic episodes, their depressive episodes occur more frequently and can be debilitating. Because of the increased frequency and severity, individuals can experience significant disruption in their lives, and treating those episodes can be challenging. 

Can Bipolar Symptoms Be Fixed With Willpower Alone?

No, willpower alone cannot treat or manage the symptoms.

Medications such as mood stabilizers and antipsychotics can help stabilize and manage the symptoms in bipolar 1 and bipolar 2. 

Are Mood Episodes Always Predictable By Triggers?

The triggers of bipolar 1 and bipolar 2 symptoms are not predictable.

While factors such as: 

• Stress
• Changes in sleep patterns
• Significant changes in life

can affect and trigger mood episodes, they aren’t always predictors. However, understanding your triggers and learning effective symptom-management tools are essential.

Treatment for Bipolar 1 & Bipolar 2

What Treatment Options Are Recommended For Bipolar 1 and Bipolar 2?

The American Psychiatric Association recommends that those diagnosed with bipolar 1 and bipolar 2 disorders receive a combination of medications such as mood stabilizers and antipsychotics to help manage symptoms. 

How Do Medications Differ Between Bipolar 1 and Bipolar 2?

The types and dose strength of medications required to treat bipolar 1 and bipolar 2 vary because they are based on an individual’s symptoms.

However, some medications are prescribed to both types of bipolar disorder, and some are prescribed for one type and not the other. 

Mood Stabilizers

They are used to treat both bipolar 1 and bipolar 2. Mood stabilizers help manage the symptoms of a full manic or hypomanic episode. A few of the mood stabilizers prescribed are:

• Lithium
• Lamotrigine
• Depakote
• Tegretol

Antipsychotics

Your doctor can prescribe an antipsychotic to be taken alone or combined with a mood stabilizer. Examples of antipsychotics are:

• Zyprexa
• Abilify
• Seroquel
• Antidepressants

These medications support symptom management for depression and anxiety. However, some can trigger a manic episode, which means individuals with bipolar 1 will be prescribed a mood stabilizer or antipsychotic with an antidepressant. Those diagnosed with bipolar 2 can be prescribed an antidepressant without another medication.

Some antidepressants are:

• Bupropion
• Parnate
• Lexapro

Antidepressant-Antipsychotic

Symbax is a medicine that combines the antidepressant fluoxetine with the antipsychotic olanzapine. This combination helps manage depression in bipolar 1.

When Is Hospitalization Or Crisis Care Necessary?

Acute psychiatric crisis stabilization or hospital care is essential when someone is experiencing:

• Thoughts of self-harm
• Thoughts of harming others
• Suicidal ideations

If you are having any of these thoughts, call 988 or go to the nearest emergency room.

How To Find Acute Psychiatric Care For Bipolar 1 and Bipolar 2 Symptoms?

Finding an acute psychiatric crisis stabilization facility can be challenging. If you think you need care, talk with your doctor, mental health provider, or contact a hospital with a psychiatric unit.

At Ocean View Psychiatric Health Facility, we provide short-term acute stabilization support for bipolar 1 and 2 symptoms. Through medication stabilization and management, our inpatient psychiatric, PHP, and IOP programs help clients manage symptoms.