Bradycardia is also known as bradycardia, the normal adult heart rate is between 60 and 100 beats per minute, if it is lower than 60 beats, it is called bradycardia, and some of them will have the symptoms of dizziness and fatigue. Paroxysmal bradycardia can be caused by physiologic and pathologic reasons. Pathologic reasons are systemic diseases such as hypothyroidism and hyperkalemia, or cardiovascular diseases such as myocarditis, acute myocardial infarction, and sick sinus node syndrome, or taking drugs to slow down the heart rate, such as metoprolol, bisoprolol, etc. Bradycardia can occur.
It is normal for a normal person to have a heart rate of less than 60 beats per minute during sleep because of the dominance of the vagus nerve, and bradycardia can occur in long-term heavy laborers or athletes.
When bradycardia occurs, it is recommended to go to the regular hospital in time to clarify the specific causes and treat the symptoms.