THE BLOOM PHASE

Perimenopause Heart Palpitations: Why They Happen, and When to Worry

Updated August 2026 · The Bloom Phase Editorial Team

A fluttering, pounding, or racing heartbeat is a common part of perimenopause. As estrogen levels swing and then fall, they affect the system that regulates your heart rate — so palpitations often arrive alongside hot flashes, or on their own, and frequently at night. In most cases they are harmless. But some heart symptoms are not, and this page is careful about the difference.
Read this first. Call emergency services if palpitations come with chest pain, shortness of breath, fainting, or pain spreading to your arm, jaw, or back. Those are not perimenopause symptoms to wait out. Everything else on this page assumes those are ruled out.

What perimenopause palpitations feel like

  • A single hard thump, like your heart skipped and then caught up
  • A brief run of fast beats that settles on its own
  • A fluttering, as if something turned over in your chest
  • A pounding you can feel while lying still — often what wakes you at 3 a.m.

Why perimenopause causes them

Estrogen influences the autonomic nervous system, which sets your heart rate without you thinking about it. During perimenopause it swings up and down before it settles low, and those swings can briefly tip the nervous system toward a faster or irregular beat. There is also an indirect route: perimenopause disrupts sleep, raises night-time adrenaline, and for many women increases anxiety — each of which can produce palpitations on its own.

What tends to make them worse

  • Caffeine — the threshold often drops in your 40s
  • Alcohol — especially the evening wine that then wakes you at 3 a.m.
  • Dehydration and low magnesium
  • Stress and broken sleep
  • Hot flashes — a hot flash and a palpitation often arrive together

What actually helps

Once serious causes are ruled out by a clinician, most women manage these by lowering the triggers rather than treating the heart: cutting caffeine back after midday, reducing evening alcohol, staying hydrated, slow breathing when one starts, and protecting sleep. Some women look at supplements marketed for the transition; our supplements guide walks through what the evidence supports without pretending a capsule fixes a heart rhythm.

This is educational information, not medical advice. Palpitations can have causes unrelated to hormones — including thyroid problems, anemia, and heart conditions. Only a clinician who can examine you can tell you which kind you have.

When to see a doctor

Book an appointment if palpitations are frequent, last longer than a few minutes, are getting worse, or come with dizziness or breathlessness. A simple ECG plus thyroid and iron bloods rules out the causes you would want ruled out.

Frequently asked questions

Can perimenopause really cause heart palpitations?

Yes. Shifting estrogen affects the nervous system that controls heart rate. That does not mean every palpitation is hormonal — which is why a first-time check is worth doing.

Why do they happen at night?

Lying still makes your heartbeat easier to notice, night-time adrenaline runs higher, and evening alcohol and caffeine are still in your system.

Are they dangerous?

Usually not, once a doctor has ruled out other causes. The danger is assuming a flutter is hormonal when it is something else. Get the first one checked.

Sources cited by name and link. See our editorial standards.

References

The health claims on this page are drawn from the following primary and institutional sources.

  1. What Is Menopause? National Institute on Aging (NIH). nia.nih.gov
  2. Perimenopause — Symptoms and causes. Mayo Clinic. mayoclinic.org