There are so many organs and types of organs in our body that we learn during our school days and later on forget them. One such part of heart is called sinus node which is the natural pacemaker of heart. Sinus node refers to a group of some consequential cells that are found in the atrium of your heart. The atrium is the exact location where electrical impulse takes place with the help of such sinus node. A defect in this sinus node and its abnormal rhythm of heart can lead to some complications. One such complication is called sinus arrhythmia. What is sinus arrhythmia?

Sinus arrhythmia is a complication related to your heart. And it is related to sinus node. Arrhythmia is referred to normal increase of heart rate when you take breathe in that is the increase of heart beats when normal inspiration takes place. This is a kind of natural response and happens more in children than in adults.

Sinus arrhythmia means normal increase in your heart beat rate not due to any exercise or physical work but when you inhale air- that is breath in. Actually it a natural response over which human being has no control. And most of the time arrhythmia does not have any symptom associated with it. But you really suffer from such ailment than on keen observation you will find that the heart beats faster when you breathe in and slower when you expire the air out. Yes , sinus arrhythmia also means decrease of heart rate when you breathe out. The heart rate slows down when you exhale the air that is breathe out in this cardiac disease. Thus what is sinus arrhythmia can be understood as a abnormal increase and decrease of heart rate when we breath in and out respectively.