Skip to content

The Most Common Causes of Heart Palpitations

If you’ve ever had the sensation that your heart is beating in an unexpected way, you’re familiar with the feeling of heart palpitations.

Heart palpitations are usually not serious. However, it’s very important to have them evaluated to rule out a potentially problematic heart condition.

Here at HeartCare Associates of Connecticut, LLC in Hamden, Connecticut, our providers are experts at diagnosing and treating a full range of heart conditions, including heart palpitations. We’d like to share this important information about the causes of heart palpitations with you. 

About heart palpitations

When you have heart palpitations, you become aware of your heart beating in a way that’s different from your usual heartbeat. You may feel that your heart is doing any of the following:

  • Racing or beating quickly
  • Pounding
  • Skipping beats
  • Fluttering
  • Beating in a way that you feel in your throat or neck
  • Beating in a way that seems to extend beyond your heart area and into your full chest
  • Flipping or flopping

Heart palpitations may be accompanied by difficulty breathing, dizziness, or lightheadedness.

Causes of palpitations

Heart palpitations can have a variety of causes, including the following:

Anxiety, panic attacks, or stress

When you feel anxious or stressed, your heart rate can speed up. You may also become more aware of the beating of your heart.

Strenuous activity

Exercise elevates heart rate because your body is speeding up the delivery of oxygen-rich blood to your cells.

Caffeine and nicotine

These stimulants increase blood flow and raise your heart rate.

An overactive thyroid

Your thyroid regulates your metabolism and many other body processes. When it’s overactive, a condition known as hyperthyroidism, your heart may beat too fast. Likewise, when you have an underactive thyroid (hypothyroidism), and your prescribed dose of thyroid hormone is too high, you may experience heart palpitations.

Low blood levels of potassium

A low level of potassium in your blood can interfere with a normal heartbeat, increasing the rate.

Certain drugs and medications

Drugs that stimulate your body, including some types of antidepressants and certain medications used to treat colds or asthma, can cause an increased heart rate. Palpitations can also occur in people who use cocaine or other street drugs.

Serious heart conditions

In most cases, heart palpitations are not a sign of a serious heart condition. But, occasionally, they can signal the presence of conditions such as arrhythmia, atrial fibrillation, or heart failure. The only way to know for sure what’s causing your heart palpitations is to receive a medical evaluation.

Reducing palpitations

Palpitations can often be reduced through lifestyle modification. For example, if your palpitations are linked to anxiety or stress, relaxation strategies such as meditation or yoga can help calm you down. If they occur because of excess caffeine intake, switching to decaf may help.

Have your palpitations checked

If you’re experiencing heart palpitations or other symptoms, HeartCare Associates of Connecticut, LLC is here to help. We can perform a comprehensive exam to discover the underlying cause of your heart palpitations and help get you back to normal. 

To schedule an appointment with one of our providers give us a call at one of our many locations, or book an appointment online.

You Might Also Enjoy...

5 Ways Diabetes Can Affect Your Heart

Diabetes is a chronic health condition that affects more than 100 million people in the United States! Managing diabetes or prediabetes is difficult on its own but these conditions also increase your risk of heart disease and stroke.  November is National Diabetes Month, an annual observance dedicated to raising awareness about diabetes. This month, make

Read More »

Are Allergies Affecting Your Heart?

Are you plagued by pesky fall allergies? You might be familiar with the runny nose, sneezing, coughing, and itchy eyes that come with seasonal allergies, but did you know it could have an effect on your heart? If you’re prone to allergies then it may surprise you to know that allergic disorders have a connection

Read More »

5 Ways to Benefit from National Healthy Aging Month

Have you heard? September is National Healthy Aging Month! It’s a great reminder of the importance of regular health check-ups, which are fundamental for detecting and managing potential health issues early on. Routine screenings, vaccinations, and consultations with healthcare professionals can help prevent and manage chronic conditions, ensuring a higher quality of life as we

Read More »

Life-Saving Reasons to Get a Nuclear Cardiac Scan

Over 6 million Americans live with heart failure, and four out of five people don’t know they have it! This is because symptoms of heart issues aren’t always severe at first — But can end up in a visit to the emergency room. Early detection of heart disease and other conditions can be life-saving. Heart

Read More »

6 Tips for Summertime Health

The summertime might mean fun vacations to the beach, outdoor adventures, and backyard barbeques, but it can also be a dangerous time for your heart. More than 600 people in the United States die each year from extreme heat.  Hotter temperatures are known to put a strain on our cardiovascular health. This is especially true

Read More »

What to Expect at a Cardiovascular Disease Screening

Cardiovascular disease kills one person every 33 seconds in the United States. Heart disease is the leading cause of death for many racial and ethnic groups in the U.S. Taking care of your heart is vital to your overall health and well-being. That’s why it’s important to have regular cardiovascular health screenings to assess your

Read More »

Appointment Request


HeartCare Associates of Connecticut provides the highest level of care to our patients. From treatments of common coronary problems, to non-invasive and state-of-the-art procedures, to life saving surgeries our dedicated and compassionate staff will make you feel at ease.

Some of the most common illnesses and issues we treat are:

  • Aneurysms

  • Cardiac Catherterization, Angiography & Stenting

  • Congestive Heart Failure Treatment Center

  • Coronary Bypass Surgery

  • Coronary Heart Disease

  • Coumadin & Anticoagulation Clinic

  • Diabetes

  • Dizziness, Palpitations, & Heart Rhythmn

  • Heart Valve Problems

  • High Cholesterol & Triglycerides

  • Hypertension (High Blood Pressure)

  • Nuclear Cardiac Scanning

  • Nutrition Programs

  • Pacemakers

  • Peripheral Arterial Disease

  • Preventive Health Programs

  • Stroke Prevention

  • Swelling (Edema) of the Legs & Ankles

  • Treatment & Prevention of Obesity

  • Ultrasound Testing & Echocardiography

  • Vein Care

  • Womens Health