COPD Myths and Truths

COPD is often misunderstood because symptoms can be caused by three different diseases. Separating fact from fiction will help you live better and better manage COPD.
By Chris Iliades, MD
Medically reviewed by Lindsey Marcellin, MD, MPHPrintE-mailChronic obstructive pulmonary disease (COPD) can be confusing because its symptoms can develop from more than one disease.

"COPD is an umbrella term for three different diseases," says Timothy R. Wu, MD, director of the COPD Center at Lahey Clinic in Burlington, Mass. Emphysema, chronic bronchitis, and chronic asthmatic bronchitis can all cause COPD symptoms. What these diseases have in common is obstructed air flow through the lungs.

Common misunderstandings about COPD are that it only occurs in older smokers, that it can't be cured, and that there is not much that can be done about it. However, that’s not necessarily the case. To better understand COPD and how to live with it, start by learning how to separate the myths from the facts.

Myth or Truth: COPD Is Always Caused by Smoking

COPD symptoms such as cough, shortness of breath, and frequent lung infections are among the most common symptoms experienced by long-term smokers. While emphysema, chronic bronchitis, and asthmatic bronchitis are usually caused by smoking, there are other causes as well. "Smoking is almost always the cause of COPD in the United States, but in many parts of the world, COPD may be more commonly caused by wood smoke from cooking fires," says Dr. Wu. Other non-smoking causes include:

Some progressive forms of asthma
Being born without a protein called alpha-1 antitrypsin
Workplace exposures to gases and fumes
Heavy exposure to secondhand smoke or air pollution

Myth or Truth: COPD Only Occurs in Older People

COPD is more common in older people who have smoked for many years, but a simple test called spirometry may detect early changes from COPD in younger people. Spirometry is a lung function test that involves blowing into a small machine that measures lung capacity. This test can be read immediately, and it is a reliable way to make a diagnosis.

"Even before COPD symptoms develop, the early changes of emphysema or bronchitis may be present," says Wu. "If younger smokers are screened with spirometry, COPD may be diagnosed in people as young as 30 or 40."

Myth or Truth: There Is No Treatment for COPD

Although there is no cure for COPD, it can be treated and managed in many people. "How well COPD can be treated depends on how advanced it is and what other diseases may be present, such as hypertension and heart disease," says Wu. You can slow down the progression of COPD by:

Stopping smoking
Taking medication as directed
Getting pulmonary rehabilitation
Using oxygen as needed

Myth or Truth: People With COPD Need to Slow Down

COPD symptoms may make some types of activity difficult, but slowing down is not good for those with COPD. Physical therapy, including breathing exercises and exercises to strengthen the arms and shoulders, can be an important part of treatment. Regular exercise along with a healthy diet helps muscles stay strong, and that reduces the demand placed on the lungs.

People with COPD should also try to stay active socially. Isolating yourself at home can lead to depression, which can make symptoms worse. It is important to stay in touch with friends and family and maintain a good support network. Many people with COPD also benefit from participating in support groups.

The biggest myth about COPD is that you can't do anything about it.Many people are able to manage their COPD symptoms well. If you smoke, even if you are still in your 30s, ask your doctor to check your lung capacity. Many of the irreversible effects of chronic bronchitis, emphysema, and chronic asthmatic bronchitis can be avoided with early diagnosis and treatment.

"It is never too late to stop smoking. As soon as you quit, your lung function starts to improve," says Wu, although lung function will never get back to normal once COPD starts. COPD symptoms develop over time. Changes in your lungs may have already started without you knowing it. The best time to stop smoking is right now.