Patient's question:
Sure, here is the translation of the content you provided:```
No
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Doctor's answer:
Sinus arrhythmia is the most common type of arrhythmia, caused by irregular signals from the sinus node. It is caused by irregular signals from the sinus node. However, this "arrhythmia" is mostly classified as "respiratory sinus arrhythmia," which is a normal physiological phenomenon. Its characteristic is that it changes with the variation of breathing. During inhalation, the heart rate can increase by several beats, and during exhalation, it can slow down by several beats. The fast and slow cycles are exactly equal to one breathing cycle, and the heart rhythm becomes regular when holding one's breath. This "sinus arrhythmia" that changes with breathing is completely normal and does not need to be worried about or treated.