Anxiety and Heart Palpitations: Why Your Heart Races and Skips

6 min read · Reviewed against evidence-based sources

Feeling your heart pound, race, or skip a beat is one of anxiety's most alarming symptoms — precisely because it makes you fear for your heart. In anxiety, palpitations come from adrenaline, and in a healthy heart they're uncomfortable but safe.

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Why anxiety causes palpitations

Adrenaline from the fight-or-flight response speeds and strengthens your heartbeat to prepare you for action. You become more aware of each beat, and occasional 'skipped' beats (ectopic beats) feel dramatic. Your heart is designed to beat fast and hard safely — it does so every time you run.

The awareness loop

Once you're frightened, you start monitoring your heart, which makes you notice every flutter, which fuels more anxiety and more adrenaline. Taking attention off the heartbeat — rather than checking your pulse — helps break this loop.

How to settle your heart

Slow, long exhales activate the vagus nerve, the body's natural brake on heart rate. Try in for 4, out for 6, and let your shoulders drop. Cutting excess caffeine and getting good sleep reduces how often palpitations show up.

Frequently asked

Are anxiety palpitations dangerous?

In a healthy heart, no. They're driven by adrenaline and settle as you calm. If you have heart disease, or palpitations come with fainting or chest pain, see a doctor.

Why does my heart skip a beat when anxious?

Occasional extra or 'skipped' beats (ectopics) are common and usually harmless. Anxiety makes you notice them more and interpret them as dangerous.

How do I stop heart palpitations from anxiety?

Slow your exhale to activate the vagus nerve, stop checking your pulse, and reduce caffeine. The heartbeat settles as adrenaline clears.

When should I get palpitations checked?

See a doctor if they're frequent, last a long time, come with fainting, breathlessness or chest pain, or you have known heart problems.

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This is psychoeducational content and not a substitute for professional care. If anxiety persists, it is worth seeing a doctor or therapist — anxiety is very treatable.