What is a sinus arrhythmia?

A person’s heart should beat with regular intervals, much like the second hand on a clock. An arrhythmia is when there is a problem with the heart’s rhythm, or it beats irregularly. Sinus arrhythmia is one type of arrhythmia. In this article, we look at what a sinus arrhythmia is, how it is diagnosed, and […]