Your heart is hard at work pumping blood and nutrients throughout your body. You can sometimes hear it or even feel it as it pumps at a steady pace.
The heart keeps an even, reliable rhythm that's controlled by your body’s own electrical system. When that system has issues, the rhythm changes. This is known as arrhythmia, which is a problem with the heart's rhythm.
It’s dramatic when someone has a heart attack on television or in the movies. But in real life, symptoms can be more subtle and difficult to identify. And because heart attack and angina symptoms are so similar, it may be hard to tell what's going on.
But knowing the differences -- and the reasons behind them -- can result in seeking treatment sooner, and living longer.
Drugs and other stimulants, such as caffeine, tobacco, alcohol, cocaine, amphetamines, and certain over-the-counter and prescription medications
Some heart conditions
Symptoms of a Heart Rhythm Disorder
A typical heart will beat at 60 to 100 times per minute. It can beat faster if you need it to during exercise or in a stressful situation. It can slow down while you sleep. Your heart is used to slowing down and speeding up. This is normal.
When its rhythm is interrupted, you might not notice. Some people, however, can feel it when it happens.