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bradycardia
bradycardia Bradycardia, specifically sinus bradycardia, means a resting heart rhythm from the sinus node that is slower than 60 beats per minute.
Bradycardia, specifically sinus bradycardia, means a resting heart rhythm from the sinus node that is slower than 60 beats per minute. It can occur as a normal finding, such as during sleep or in athletic people, or as a sign of illness; while it often does not need intervention, persistent severe slowing can be dangerous.