the.com/palpitation

your heart auditioning for a drum solo nobody requested.

means A noticeably rapid, fluttering, or irregular heartbeat that you can actually feel — often triggered by stress, caffeine, exertion, or excitement.

from From Latin palpitare, 'to throb or flutter,' itself a frequentative of palpare, 'to touch gently, to pat or stroke' — so the heart isn't just beating, it's beating again and again and again, fluttering rather than thudding. The word arrived in English by way of medical Latin and French around the 16th–17th centuries. That same root palpare gives us 'palpate,' the doctor's careful prodding, and lurks behind 'feel' words generally — the original sense being the soft, repeated touch you now feel hammering from the inside.

usual suspects
Caffeine, stress, and not enough sleep top the list.
mostly harmless
Most palpitations are benign and pass on their own.
skipped beat
Often it's an extra beat, not a missed one.
chest theater
Felt in throat or neck, not just chest.
vagus trick
Coughing or cold water can sometimes reset rhythm.
for instance

atrial fibrillation — affects 2-3% of adults, irregular heart rhythm causing fluttering sensations

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