Why Is My Heart Skipping Beats? 8 Causes & When to Worry

Your heart is most likely skipping beats because of premature ventricular contractions (PVCs) or premature atrial contractions (PACs) — extra heartbeats that start in your heart's lower or upper chambers and briefly disrupt your normal rhythm, creating that unsettling flutter, flip, or pause sensation in your chest.

These extra beats are extremely common: nearly everyone experiences them at some point, and in most cases they're completely harmless. Triggers like caffeine, stress, poor sleep, or dehydration can make your heart skip beats more frequently. However, when skipped beats happen often, come with dizziness or chest pain, or occur alongside a racing heart, they may signal an underlying condition that needs medical attention.

What Does It Mean When Your Heart Skips a Beat?

When your heart "skips a beat," you're actually feeling an extra heartbeat that fires earlier than expected, followed by a compensatory pause that makes the next normal beat feel stronger — this creates the sensation of a skip, flutter, or thump in your chest.

The medical term for these sensations is palpitations, and the irregular beats themselves are called ectopic beats. Your heart has its own electrical system that coordinates each heartbeat. Sometimes, a rogue electrical signal fires from somewhere other than the sinoatrial node (your heart's natural pacemaker), causing an early contraction.

There are two main types:

The "skipped" feeling isn't actually a missed beat — it's your heart beating slightly out of sync, then resetting to its normal rhythm.

8 Common Causes of Heart Skipping Beats in 2026

Understanding why your heart is skipping beats so much starts with identifying your personal triggers — most causes are lifestyle-related and highly correctable.

Does Caffeine Make Your Heart Skip Beats?

Caffeine stimulates your central nervous system and increases adrenaline release, which can make your heart more excitable and prone to extra beats. Coffee, energy drinks, pre-workout supplements, and even some medications contain caffeine. If you notice more skipped beats after your morning coffee or an afternoon energy drink, try cutting back gradually and see if the frequency decreases.

Can Stress and Anxiety Trigger Skipped Heartbeats?

Absolutely. When you're stressed or anxious, your body releases cortisol and adrenaline — hormones that prepare you for "fight or flight." These hormones make your heart beat faster and stronger, and they can also trigger premature beats. Chronic stress keeps these hormone levels elevated, which explains why some people notice their heart skipping beats much more during difficult periods of their lives.

"Stress and anxiety are among the most common triggers for palpitations. The release of stress hormones can cause the heart to beat irregularly." — Dr. Shephal Doshi, cardiac electrophysiologist at Providence Saint John's Health Center

Is Lack of Sleep Connected to Heart Palpitations?

Poor sleep disrupts your autonomic nervous system (the part that controls heart rate, breathing, and other automatic functions). Studies show that sleep deprivation increases sympathetic nervous activity, making your heart more reactive and prone to irregular rhythms. If you've been sleeping poorly and notice your heart skipping beats more often, the two are almost certainly connected.

Also Read: Why Is My Body Shaking for No Reason at Night? 8 Causes

Does Dehydration Cause Heart Irregularities?

When you're dehydrated, your blood volume drops and your electrolyte balance shifts — both of which affect your heart's electrical system. Sodium, potassium, calcium, and magnesium all play critical roles in generating the electrical signals that coordinate each heartbeat. Low levels of any of these can make premature beats more likely.

Can Alcohol Trigger a Skipping Heart?

Alcohol is a known trigger for atrial fibrillation and other arrhythmias. Even moderate drinking can cause your heart to skip beats more frequently. The phenomenon is so common it has its own name: "holiday heart syndrome," referring to the spike in arrhythmias doctors see after weekends or holidays when people drink more than usual.

Do Hormonal Changes Affect Heart Rhythm?

Hormonal fluctuations — during menstruation, pregnancy, perimenopause, or menopause — can trigger palpitations. Estrogen and progesterone influence heart rate and blood vessel function, and shifts in these hormones can make your heart more susceptible to irregular beats. Many women notice increased palpitations during their luteal phase or during hot flashes.

Can Certain Medications Cause Skipped Beats?

Several medications can trigger or worsen palpitations:

• Decongestants containing pseudoephedrine
• Asthma inhalers (beta-agonists)
• Some antidepressants
• Thyroid medications (if dose is too high)
• Stimulant ADHD medications
• Diet pills and supplements containing stimulants

If your skipped beats started or worsened after beginning a new medication, speak with your doctor about alternatives.

Is an Underlying Heart Condition Causing the Skipping?

In a minority of cases, frequent skipped beats indicate an underlying cardiac issue:

• Mitral valve prolapse: A heart valve doesn't close properly
• Cardiomyopathy: The heart muscle is weakened or enlarged
• Coronary artery disease: Reduced blood flow to the heart
• Arrhythmias: Conditions like atrial fibrillation or supraventricular tachycardia

These conditions usually come with other symptoms like breathlessness, fatigue, chest discomfort, or dizziness — not just isolated skipped beats.

How to Tell If Your Skipped Beats Are Harmless

Most skipped heartbeats are benign and need no treatment, but certain patterns and accompanying symptoms distinguish harmless palpitations from those requiring medical evaluation.

Track your symptoms by noting:

1. Frequency: Occasional skipped beats (a few per day) are almost always harmless; hundreds per hour may need investigation
2. Duration: Brief flutters lasting seconds are less concerning than sustained irregular rhythms
3. Triggers: If you can link them to caffeine, stress, or poor sleep, they're likely benign
4. Associated symptoms: Skipped beats alone are rarely dangerous; skipped beats with fainting, chest pain, or severe breathlessness need immediate attention

"If someone is having palpitations and they have no other symptoms, they're feeling well, they're exercising normally, there's no family history of sudden death, then the likelihood that this is something dangerous is very, very low." — Dr. John Mandrola, cardiac electrophysiologist

A useful self-check: Can you exercise normally without symptoms worsening? If your skipped beats don't increase with exertion and you have no other cardiac symptoms, they're almost certainly harmless PVCs or PACs.

When to See a Doctor About Heart Skipping Beats

Seek medical evaluation if your skipped beats are frequent (more than a few per minute), increasing in frequency, or accompanied by fainting, severe dizziness, chest pain, or shortness of breath.

Schedule an appointment with your doctor if you experience:

• Skipped beats happening multiple times per minute
• Palpitations that wake you from sleep
• A racing heart that lasts more than a few seconds
• Skipped beats that worsen with exercise
• A family history of sudden cardiac death or arrhythmias
• New palpitations after starting a medication

Go to the emergency room immediately if you have:

• Chest pain or pressure with palpitations
• Fainting or near-fainting episodes
• Severe shortness of breath
• Palpitations lasting several minutes with a heart rate over 150 bpm

Your doctor will likely order an electrocardiogram (ECG) to capture your heart's electrical activity. If skipped beats are infrequent, you may wear a Holter monitor (a portable ECG) for 24–48 hours or a longer-term event monitor for up to 30 days.

Also Read: Why Is My Blood Pressure High in the Morning? 7 Causes & Fixes

How to Reduce Heart Palpitations Naturally

Lifestyle modifications successfully eliminate or dramatically reduce skipped beats for most people — start with the highest-impact changes: sleep, hydration, and stimulant reduction.

Immediate Relief Techniques

When you feel your heart skipping, try these vagal maneuvers to reset your rhythm:

• Cold water splash: Splash cold water on your face or hold a cold, wet towel against your face for 20–30 seconds
• Valsalva maneuver: Pinch your nose, close your mouth, and try to exhale forcefully for 10–15 seconds
• Slow, deep breathing: Inhale for 4 counts, hold for 4, exhale for 6 counts
• Coughing: A few forceful coughs can sometimes interrupt an irregular rhythm

Long-Term Lifestyle Changes

Supplements That May Help

Certain supplements support heart rhythm when deficiencies exist:

• Magnesium: Many Americans are deficient; supports electrical conduction
• Potassium: Essential for normal heart rhythm (get levels tested first)
• Omega-3 fatty acids: May reduce inflammation and support heart health
• CoQ10: Supports cellular energy production in heart muscle

Always consult your doctor before starting supplements, especially if you take heart medications.

Medical Treatments for Frequent Skipped Beats

When lifestyle changes aren't enough, medical treatments ranging from beta-blockers to catheter ablation can effectively control frequent or symptomatic premature beats.

Your doctor may recommend:

• Beta-blockers: Medications like metoprolol slow heart rate and reduce the heart's sensitivity to adrenaline
• Calcium channel blockers: Another class of medications that can reduce palpitations
• Antiarrhythmic drugs: For more persistent arrhythmias (these have more side effects and are used selectively)
• Catheter ablation: A minimally invasive procedure that destroys the small area of heart tissue causing abnormal signals — highly effective for specific arrhythmias

For most people with benign PVCs or PACs, reassurance and lifestyle modification are sufficient. Treatment is typically reserved for those with very frequent episodes (more than 10,000 PVCs per day), significant symptoms, or evidence that the irregular beats are affecting heart function.

In Short

Most skipped heartbeats are premature contractions that feel alarming but pose no health risk — they're your heart's normal electrical system occasionally misfiring, usually triggered by caffeine, stress, poor sleep, or dehydration. Reducing these triggers resolves symptoms for most people. See a doctor if skipped beats are frequent, increasing, or accompanied by chest pain, fainting, or breathlessness — these patterns warrant an ECG and possibly further testing to rule out underlying arrhythmias.

What You Also May Want To Know

Why is my heart skipping a beat randomly throughout the day?

Random skipped beats throughout the day are almost always benign PVCs or PACs triggered by fluctuating stress hormones, caffeine metabolism, hydration levels, or digestive activity (a full stomach can press against your heart). These triggers vary throughout your day, which explains the seemingly random pattern. If they occur only occasionally and you feel otherwise fine, they're unlikely to indicate any problem.

Why is my heart skipping beats so much more than usual?

An increase in skipped beats typically signals that one or more triggers has intensified — you may be sleeping less, consuming more caffeine, experiencing more stress, or fighting an infection. Viral illnesses commonly increase palpitations. Hormonal changes (menstrual cycle, perimenopause) also cause temporary surges. Track your triggers for a week to identify the pattern.

Can anxiety alone cause my heart to skip beats frequently?

Yes. Anxiety directly activates your sympathetic nervous system, flooding your body with adrenaline and making your heart more electrically excitable. Chronic anxiety keeps this system activated, leading to frequent premature beats. Many people enter a cycle where noticing palpitations increases anxiety, which triggers more palpitations. Treating the underlying anxiety often eliminates the skipped beats entirely.

Should I worry if my heart skips beats during exercise?

Skipped beats that decrease or disappear during exercise are generally benign — PVCs often improve with exertion because your heart rate becomes more regular at higher rates. However, if skipped beats begin or worsen during exercise, especially if accompanied by lightheadedness or chest discomfort, you should stop exercising and consult a cardiologist before resuming vigorous activity.

Are heart palpitations at night more dangerous than during the day?

Nighttime palpitations aren't inherently more dangerous, but they're more noticeable because you're lying still in a quiet environment. Your body also shifts toward parasympathetic ("rest and digest") nervous system activity at night, which can change heart rhythm patterns. If palpitations regularly wake you from sleep or are accompanied by gasping or choking, mention this to your doctor — sleep apnea can trigger arrhythmias.

Reviewed and Updated on May 30, 2026 by George Wright