An arrhythmia is a disorder of the heart rate (pulse) or heart rhythm, such as beating too fast (tachycardia), too slow (bradycardia), or irregularly. One of the most common is abnormally slow heartbeats, a condition known as bradycardia. For most people, a normal resting heart rate is considered to be between 60 to 100 beats a minute; anything less than this may be considered bradycardia.
Atherosclerosis, also known as “hardening of the arteries,” occurs when fat, cholesterol, and other substances build up in the walls of arteries and form hard structures called plaques. Over time, these plaques can block the arteries and cause problems throughout the body. Read more