Extra heartbeats: should I be worried?

The occasional feeling of butterflies in the chest can be a disturbing experience for some people. Generally when the heart skips, or has an extra beat, it’s not usually

Fast, Slow and Irregular Heartbeats (Arrythmia)

Irregular Heartbeat

How much should you worry about that 'extra' heartbeat?

What are the causes for an unsteady heartbeat? - Quora

Arrhythmia: How an Abnormal Heartbeat Leads to Sudden Cardiac Arrest - HealthXchange

Why You May Not Hear Baby's Heartbeat in Early Pregnancy

What makes your heart skip a beat? - Harvard Health

Ectopic heartbeat Information

Tachycardia: Symptoms, Causes & Treatment

What Is A Dangerous Heart Rate? – Forbes Health

Racing Heart? 12 Reasons Your Heart Rate Won't Go Down

Normal Sinus Rhythm

Resting heart rate – definition, impacting factors & how to check it