Heart palpitations and tachycardia: causes, symptoms, and treatment

Heart palpitations and rapid heartbeat are common conditions that many adults experience at some point in their lives. Palpitations refer to the sensation of feeling your heart beating—this may feel like pounding, fluttering, or an irregular rhythm. A rapid heartbeat, or tachycardia, occurs when the heart rate exceeds the normal resting rate, typically above 100 beats per minute. While occasional palpitations may be harmless, frequent or severe episodes can indicate underlying health issues that require medical attention.

Causes of Heart Palpitations and Rapid Heartbeat
There are various factors that can cause palpitations and tachycardia, ranging from lifestyle-related triggers to serious heart conditions:

• Lifestyle factors: Excessive caffeine, nicotine, alcohol consumption, stress, and anxiety.

• Medical conditions: Thyroid disorders, anemia, dehydration, low blood sugar, and heart disease.

• Medications: Certain decongestants, asthma inhalers, and stimulant drugs.

• Arrhythmias: Abnormal heart rhythms, such as atrial fibrillation, supraventricular tachycardia, or ventricular tachycardia.

Symptoms to Watch For
In addition to the sensation of a racing heart, symptoms may include:

• Shortness of breath

• Dizziness or lightheadedness

• Chest pain or pressure

• Fatigue
  If any of these symptoms occur suddenly or severely, immediate medical attention is necessary, as they may indicate a serious cardiac event.

Diagnosis and Medical Evaluation
A healthcare provider will typically perform a thorough evaluation to determine the cause of palpitations or rapid heartbeat. This may include:

• Electrocardiogram (ECG) to record heart rhythm

• Holter monitor for continuous heart monitoring over 24–48 hours

• Echocardiogram to assess heart structure and function

• Blood tests to check for thyroid problems, anemia, or electrolyte imbalances

Treatment Options
The treatment for palpitations and tachycardia depends on the underlying cause:

• Lifestyle changes: Reducing caffeine and alcohol, quitting smoking, managing stress, and improving hydration.

• Medications: Beta-blockers, calcium channel blockers, or antiarrhythmic drugs for rhythm control.

• Procedures: In some cases, catheter ablation or pacemaker implantation may be necessary.

Prevention and Heart Health
Adopting a heart-healthy lifestyle is crucial for preventing palpitations and tachycardia:

• Maintain a balanced diet rich in fruits, vegetables, and whole grains

• Engage in regular physical activity

• Monitor and control blood pressure, cholesterol, and blood sugar levels

• Get regular medical check-ups

Expert Confirmation
Dr. Hend Ahmed El-Sousi, a specialist in critical cardiac cases, preventive cardiology, and related conditions, confirms the importance of taking heart palpitations and rapid heartbeat seriously. She emphasizes that while occasional palpitations may be harmless, persistent or severe symptoms should never be ignored, as early diagnosis and management can prevent serious complications. Dr. El-Sousi advises individuals to seek medical evaluation if they notice changes in their heartbeat, especially if accompanied by chest pain, dizziness, or shortness of breath.