Is this normal?
Why do I get heart palpitations at night in perimenopause?
Last reviewed: 2026-07-10 · Reviewed by Kindr Health (NPI 1609792902)
Nighttime palpitations are commonly reported in perimenopause, often tied to hormone dips, vasomotor episodes, and cortisol shifts around 3–5am. However, palpitations can also signal cardiac, thyroid, or electrolyte issues — women's cardiac symptoms are under-recognized. Any new or persistent palpitations warrant a provider visit. This is one where 'commonly reported' is not enough to skip a check.
Why it happens
- Estrogen influences vascular tone and autonomic nervous system balance.
- Nighttime hormone dips coincide with cortisol rises.
- Vasomotor episodes are frequently accompanied by heart-rate spikes.
When it's not just menopause — see a provider
- Palpitations with chest pain, shortness of breath, fainting, or arm/jaw pain — call 911.
- Palpitations lasting more than a few minutes or occurring at rest without a trigger.
- Personal or family history of heart disease, thyroid disease, or arrhythmia.
- Any palpitation pattern that worries you — get it checked; women's cardiac symptoms are under-recognized.
If you're in the U.S. and in crisis, call or text 988.
Frequently asked
Is this always dangerous?
No — many nighttime palpitations are benign. But 'benign' is a provider's conclusion after other causes are ruled out.
Should I get an ECG?
That decision belongs with your provider. Bring a symptom log (timing, duration, what preceded it).
Does caffeine matter?
Late-day caffeine, alcohol, and dehydration are common triggers for many people.
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Dot is an AI companion providing educational wellness information and supportive conversation. Dot is not a medical provider and does not offer medical advice, diagnosis, or treatment. If you have a medical concern, consult a licensed healthcare professional. If you are in crisis, call or text 988.