Bipolar II is not what it sounds like. When most people hear “bipolar,” they picture Bipolar I: dramatic swings into full-blown mania, where someone might go days without sleep, spend wildly, or lose touch with reality. Bipolar II is different. People with Bipolar II never reach that extreme. Instead, they cycle in and out of depression, with occasional bursts of elevated energy that sometimes feel good but more often leave them anxious and irritable.
If you’ve been told you have Bipolar II, or if you’re wondering whether your moods fit the picture, here’s what you need to know.
Why Your Body’s Clock Matters
The mood cycles in Bipolar II trace back to the body’s internal clock, what scientists call the circadian rhythm. This clock controls your energy, sleep, appetite, and motivation. It runs on hormones like melatonin and cortisol. When those hormones get knocked off balance, your mood tends to follow.
A surprising number of things can throw off that clock: stress, poor sleep, jet lag, seasonal changes, shifts in your daily routine, puberty, and, for women, periods, menopause, and childbirth. Each of these can trigger a mood shift in someone with Bipolar II.
In a sense, Bipolar II could be called a “Fragile Body Clock Disorder.” But the name we’re stuck with is Bipolar II.
How This Differs from Regular Depression
Depression is common in Bipolar II, and it often gets mistaken for regular depression, what doctors call Major Depressive Disorder. But there’s a key difference: in Bipolar II, the depression sometimes has an edge to it.
Not always, but often enough, the low mood mixes with irritability, agitation, or a wired, restless energy. That combination, depression plus a charged-up nervous system, is called hypomania. The word comes from Greek and means “mild mania.”
Other signs of hypomania include:
- Racing thoughts
- Bursts of high energy
- Acting impulsively
- Intense emotions that shift quickly, from happy to giddy to sad
- Hyperactivity
Hypomania can feel pleasant or deeply uncomfortable. But unlike full mania, it doesn’t cause someone to completely lose control.
“I was silly and giddy one minute, bursting with rage the next; running around excitedly in the afternoon but impossible to rouse out of bed in the morning.”
— Gogo Lidz, pictured below, has become a successful journalist since finding the right treatment for bipolar II. She describes her experience in New York Magazine.
How Moods Shift Over Time
Bipolar II affects everyone a bit differently, but there’s a common pattern. Mood and energy rise and fall throughout life, often starting in the teen years or even earlier. Early on, the shifts tend to be quick. With age, they slow down, and depressions tend to come more often.
The mood shifts color nearly every part of life, including how you think.
How It Affects Your Thinking
Mood shapes thoughts as much as it shapes feelings. People with Bipolar II often get misdiagnosed with ADHD because the mood disorder makes them distracted and restless. Their thoughts race or drag, and the mind fills with several streams of thought at once.
This makes it hard to set priorities. You might lock in on one task for hours while neglecting everything else, then jump from task to task without finishing any of them. Thoughts arrive with real force, which can spark creativity or bring on frustration, sometimes at once.
During hypomania, small irritations blow up into big ones. Conflict with people flares up quickly. And the surge of energy, while sometimes welcome, can leave you edgy and craving alcohol or other substances just to feel calm.
The Anxiety Connection
Anxiety is one of the most common features of hypomania. It shows up as a physical restlessness, a nagging sense of dread, or a feeling that something bad is about to happen. Most of the time, you can’t put your finger on what’s causing it.
Social situations make it worse. Other people start to seem hostile or mean-spirited, even when they’re not. At its peak, the anxiety tips into full panic attacks.
The impulsivity that comes with hypomania creates its own problems: overspending, jumping into new relationships, starting projects that stall halfway through. Friends and family often find hypomania harder to live with than the depression itself.
The Upside, and Why It Doesn’t Last
Hypomania isn’t all bad. When it’s running mild, it can make you feel friendly, confident, and outgoing. Your mood lifts the people around you. Others see you as funny, generous, and full of energy.
The catch is that the body can’t hold that state for long. After a few days, the pleasant buzz turns into edgy impatience, then anxiety and irritability, and then depression. The same energy that felt like a gift becomes a weight.
How Bipolar II Is Treated
Depression is common in Bipolar II, but antidepressants don’t work well for it. In fact, they sometimes make things worse. The treatments that actually help target the underlying mood cycles rather than just the depression.
- Mood stabilizers like lamotrigine and lithium work by smoothing out the cycles that pull people repeatedly into depression.
- Atypical antipsychotics such as cariprazine (Vraylar), lurasidone (Latuda), lumateperone (Caplyta), and quetiapine (Seroquel) bring faster relief to bipolar depression.
- Natural therapies like omega-3 fatty acids, coenzyme Q10, probiotics, and light therapy.
- Other options include transcranial magnetic stimulation (TMS) and off-label medications like pramipexole, modafinil, and thyroid supplementation.
Most of these medications also protect brain cells from the damage that stress causes over time.
Therapy is a key part of recovery, not just for coping with the effects of Bipolar II, but for reducing mood swings at the biological level. Therapy steadies the hormones that regulate your internal clock, including cortisol and melatonin, and lowers the inflammation that stress and depression leave behind. It’s particularly effective at taming the anxiety that so often travels with Bipolar II.
With the right combination of medication and therapy, Bipolar II is treatable. The cycles can slow, the depressions lift, and the anxiety ease. Getting the diagnosis right is the first step.
—Chris Aiken, MD
Director, Psych Partners
Editor in Chief, Carlat Psychiatry Report
