A distinctly slow heartbeat, which may be a normal idiosyncrasy or with causes ranging from regular strenuous exercise to abnormally slow heart stimulus to the side-effects of medication. Bradycardia is usually defined as a pulse below 60 beats a minute, or 70 in children.

	Arrhythmias/Dysrhythmias The Condition "...The heart can beat too fast (tachycardia) or too slow (bradycardia)..."

Last updated: May 10, 2007