An electrocardiogram (ECG) is a quick, painless test that records the electrical activity of your heart. The ECG produces a trace of signals as waves on a graph, helping clinicians assess how your heart is functioning.

An ECG may be particularly helpful for: 
Patients with a family history of heart problems
Those starting a new exercise routine or high-intensity sport
Individuals who want a baseline record of their heart activity
Anyone seeking reassurance about their heart health