HIGHLIGHTS

Open
Grocery Coupons

Grocery Coupons

Members can print free savings coupons

Brain Health Center

Brain Health Center

Learn how to live smart and stay sharp

Amazon Kindle

Amazon Kindle

Members save on e-
readers and tablets

Caring for loved ones?

Caring for loved ones?

Find the resources you need

HEALTH ENCYCLOPEDIA

Diseases & Conditions A - Z
powered by healthline

Chronic Obstructive Pulmonary Disease (COPD)

Overview

Chronic obstructive pulmonary disease (COPD) is a progressive lung disease that makes it difficult to breathe. “Progressive” means that the disease gets worse over time.

Approximately 12 million people in the United States have been diagnosed with COPD. Many more may be affected and not know they have it. According to the Centers for Disease Control and Prevention (CDC), COPD is the fourth leading cause of death in the United States. Its prevalence increases with age. Men are more likely to have the disease, but the death rate for men and women is about the same.

The most common cause of COPD is smoking. The two main forms of COPD are chronic bronchitis and emphysema. Many people have a combination of both.

How the Lungs Work

To better understand COPD, it will help to understand how the lungs work. Every time you breathe in, air passes through your windpipe and into your bronchial tubes. In your lungs, these bronchial tubes branch off into thousands of smaller tubes called bronchioles. At the ends of the bronchioles are air sacs called alveoli. These air sacs are like little balloons. When you breathe in, they stretch and fill with air. When you breathe out, they shrink back down.

In the walls of the air sacs are tiny blood vessels called capillaries. When the air sacs fill with air, oxygen goes into the capillaries to be carried through your blood stream to all parts of your body. At the same time, carbon dioxide (a waste material) passes out of the capillaries into the air sacs. Then you breathe it out.

How COPD Affects Breathing

COPD causes the following changes in your lungs and airways:

  • air sacs and airways lose their ability to stretch
  • the walls of the air sacs are destroyed
  • the walls of the airways become thickened and inflamed
  • airways become clogged with mucus

If you have COPD, you may have one or more of these changes in your lungs. These changes reduce the flow of air in and out of your lungs. This deprives your body of much-needed oxygen.

Forms of COPD

There are two main forms of COPD.

Chronic bronchitis: This is chronic inflammation of the air passages with airflow obstruction. It involves a long-term cough with mucus. Long term means most days of the week for at least three months in two successive years.

Emphysema involves destruction of the lung tissue, specifically the alveoli.

Both forms of COPD cause damage to your airways and interfere with the absorption of oxygen and the release of carbon dioxide.

Outlook for COPD

There is no cure for COPD, and doctors are not able to reverse the damage it causes. Over time, ordinary tasks may become more difficult. However, with treatment and lifestyle changes, you can slow the progress of the disease so that you can feel better and stay more active.


Content licensed from:

Written by: David Heitz
Published on: Jul 30, 2014
Medically reviewed on: Jul 30, 2014: George Krucik, MD, MBA

This feature is for informational purposes only and should not be used to replace the care and information received from your health care provider. Please consult a health care professional with any health concerns you may have.
health
TOOLS
Symptom Search
Enter your symptoms in our Symptom Checker to find out possible causes of your symptoms. Go.
Drug Interaction Checker
Enter any list of prescription drugs and see how they interact with each other and with other substances. Go.
Pill Identifier
Enter its color and shape information, and this tool helps you identify it. Go.
Drugs A-Z
Find information on drug interactions, side effects, and more. Go.

 

 

Discounts & Benefits

From companies that meet the high standards of service and quality set by AARP.

everyday savings center membership benefits aarp

Members save from top retailers online at the Everyday Savings Center powered by NextJump.

Member Benefits Discounts Tires Sears

Members get $13.50 off oil changes Tues-Thurs at Sears Auto Center.

AARP Real Pad Tablet

Go Mobile with RealPad. Connect, play and share plus free 24/7 live customer support.

Member Benefits

Join or renew today! AARP members receive exclusive member benefits & affect social change.

Rewards for Good

Your Points Balance:

Learn More

Earn points for completing free online activities designed to enrich your life.

Find more ways to earn points

Redeem your points to save on merchandise, travel, and more.

Find more ways to redeem points

AARP FIGHTS FOR YOU
ADVOCACY & PROGRAMS

African American, Asian Community Page

AARP In Your Corner

Visit Black Community, Español  and Asian Community pages.

AARP Drivers Safety logo

Driver Safety Program

Register at a location near you to keep your driving skills sharp. 

Create the Good

Create The Good 

Find opportunities to volunteer in your neighborhood. 

AARP Drive to End Hunger Logo

Drive to End Hunger

NASCAR champ Jeff Gordon teams up with AARP Foundation. 

 

Green Dot Prepaid Card

Prepaid MasterCard

AARP Foundation Prepaid MasterCard brought to you by Green Dot.