Heart palpitations are normal most of the time. In a population study of healthy adults aged 25 to 41, 69% had at least one extra heartbeat over 24 hours, and the median count was just two. Even at the 95th percentile, healthy people had up to 193 extra beats in a single day without any underlying heart problem. An occasional flutter, skip, or thud in your chest is part of how a healthy heart operates.
What Counts as a Normal Amount
Your heart beats roughly 100,000 times per day. Scattered among those beats, most people experience premature contractions, where the heart fires a beat slightly early. You might feel this as a skip, a flip, or a brief pounding sensation. Having a handful of these per day is completely unremarkable, and even a few hundred can fall within the normal range for some people.
The threshold where doctors start paying closer attention is when these extra beats make up more than 10% of your total heartbeats over 24 hours. That would mean roughly 10,000 or more premature beats in a day. At a burden above 15% to 25%, there’s a real risk of weakening the heart muscle over time. Below that range, and especially below 10%, the extra beats are almost always harmless.
Common Triggers in Healthy People
Palpitations often show up in predictable situations. Caffeine, alcohol, chocolate, stress, anxiety, and poor sleep are the most frequent triggers. Spicy or heavy meals can also set them off. High-carbohydrate and high-sodium foods sometimes cause a noticeable increase in heart rate after eating, and compounds found naturally in chocolate, aged cheese, cured meats, and dried fruit can temporarily raise blood pressure or speed up the heart.
Alcohol deserves special attention. People who had more than two drinks within four hours were over 3.5 times as likely to experience an episode of atrial fibrillation (a fast, irregular rhythm) compared to those who hadn’t been drinking. You don’t need to be a heavy drinker for this to happen. The pattern is common enough around holidays that cardiologists call it “holiday heart syndrome.”
Dietary supplements taken with meals can also trigger palpitations, as can sensitivity to MSG in processed or restaurant foods.
Why Anxiety Makes Palpitations Feel Worse
If you’re anxious, you’re more likely to notice your heartbeat, and more likely to interpret what you feel as dangerous. This isn’t imaginary. Research in psychiatry shows that people with higher anxiety sensitivity pay more attention to internal body signals like heart rate and breathing. That heightened awareness feeds a loop: you notice a normal beat, worry about it, and the worry itself speeds up your heart or triggers another premature beat.
People with lower anxiety sensitivity experience the same extra beats but rarely register them. The palpitation itself may be identical. What changes is whether your brain flags it as a threat. This means that some of the palpitations you’re noticing may have been happening for years without you ever feeling them.
Palpitations During Pregnancy
Palpitations are especially common during pregnancy and are usually harmless. Your blood volume increases by almost 50% over the course of pregnancy, which forces the heart to pump harder and faster to supply both your body and the growing fetus. That extra workload naturally produces more noticeable heartbeats, flutters, and occasional racing sensations. Most pregnant people experience palpitations at some point, and for the vast majority, they resolve after delivery.
How Age Affects Frequency
Extra heartbeats become more common as you get older. Research from the European Society of Cardiology found that the chance of atrial (upper chamber) irregular beats increases by about 9% per year, and ventricular (lower chamber) irregular beats by about 4% per year. The rise becomes especially noticeable starting around age 50 to 54.
This doesn’t automatically mean something is wrong. Many older adults carry a higher number of extra beats without symptoms or consequences. However, a consistently high burden of irregular beats in older adults does warrant monitoring, because it can sometimes precede heart rhythm problems that benefit from early treatment.
Signs That Palpitations Need Attention
The palpitations themselves are rarely the problem. What matters is what comes with them. You should treat palpitations as urgent if they’re accompanied by chest pain lasting more than a few minutes, dizziness or fainting, or shortness of breath. These combinations can signal a rhythm disturbance that’s affecting how well your heart pumps blood.
Other patterns worth flagging to a doctor: palpitations that last several minutes without stopping, episodes that come with a sustained heart rate above 150 beats per minute at rest, or a new onset of palpitations in someone with known heart disease. Palpitations that happen only during exercise and stop when you rest are also worth mentioning, since they can occasionally point to a structural issue.
If your palpitations are brief (a few seconds), happen at random, and leave you feeling fine otherwise, they almost certainly fall into the normal category. The vast majority of people who notice their heart skipping or fluttering have nothing wrong with it.