Skip to content
My WebMD Sign In, Sign Up

Heart Disease Health Center

Font Size
A
A
A

Fast heart rate or irregular heart rhythm and shortness of breath during physical activities

Exercise increases heart rate, but the rate usually returns to normal within minutes after the exercise stops. Anyone who has a fast heart rate or irregular rhythm with shortness of breath for an extended period of time after physical activity may have a heart problem. Anyone who has palpitations, an irregular heart rhythm, lightheadedness, or fainting when he or she is physically active needs to be evaluated before activities are continued.

If you have heart disease or heart failure, or if you have had a heart attack, be sure you understand the seriousness of a change in your heart rate or rhythm.

Recommended Related to Heart Disease

Atherosclerosis and Coronary Artery Disease

Atherosclerosis -- sometimes called hardening of the arteries -- can slowly narrow and harden the arteries throughout the body. When atherosclerosis affects the arteries of the heart, it’s called coronary artery disease. Coronary artery disease is the No. 1 killer of Americans. Most of these deaths are from heart attacks, caused by sudden blood clots in the heart’s arteries. Atherosclerosis can create life-threatening blockages, without you ever feeling a thing. Since we’re all at risk for coronary...

Read the Atherosclerosis and Coronary Artery Disease article > >

Author Jan Nissl, RN, BS
Editor Susan Van Houten, RN, BSN, MBA
Associate Editor Tracy Landauer
Primary Medical Reviewer William M. Green, MD - Emergency Medicine
Specialist Medical Reviewer H. Michael O'Connor, MD - Emergency Medicine
Last Updated April 24, 2009

WebMD Medical Reference from Healthwise

Last Updated: April 24, 2009
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

Today on WebMD

cholesterol lab test report
Article
Compressed heart
Article
 
Heart Foods Slideshow
Slideshow
Compressed heart
Article
 
empty football helmet
Article
doctor looking at xrays
Video
 
eating blueberries
Article
Simple Steps to Lower Cholesterol
Slideshow
 
Inside A Heart Attack
SLIDESHOW
Omega 3 Sources
SLIDESHOW
 
Salt Shockers
SLIDESHOW
lowering blood pressure
SLIDESHOW