We take roughly thousands of breaths every day, usually without giving them much thought.
But as we get older, protecting our lungs becomes increasingly important.
Our lungs naturally change with age. The chest wall becomes a little stiffer. Respiratory muscles may weaken. Lung tissue loses some elasticity. And our immune defenses may not respond to respiratory infections quite as effectively as they once did.
You can’t stop every one of these changes. But there is a lot you can do to protect the lung function you have. And fortunately, most of it isn’t complicated.
You don’t need an expensive supplement, a special “lung detox,” or some elaborate breathing device. You need a handful of sensible habits.
Here are seven of the most important.
1. Don’t Smoke—and It’s Never Too Late to Quit
If there is one thing you can do to protect your lungs, this is it.
Cigarette smoke damages the airways and the tiny air sacs in your lungs. Smoking is a major cause of COPD and lung cancer and can worsen many other respiratory conditions.
But here’s the important part: If you smoke, quitting still matters—even later in life.
Don’t think, “I’ve smoked for 40 years. What’s the point now?” There is a point. Your health can benefit from quitting regardless of how long you’ve smoked.
And don’t forget about secondhand smoke. You don’t have to be the person holding the cigarette to be exposed. Regular secondhand smoke exposure can also harm your lungs.
Dr. Mike’s Take
I never liked the approach of scolding patients who smoked. Most smokers already know cigarettes aren’t good for them. Nicotine addiction is powerful.
If you’ve tried quitting before and failed, that doesn’t mean you can’t quit. Talk with your healthcare professional about counseling, medications, nicotine replacement, or a combination of approaches.
Sometimes the next attempt is the one that works.
2. Keep Moving
Exercise doesn’t magically make aging lung tissue young again. But it does something extremely valuable. It makes your body better at using oxygen.
Your lungs bring oxygen into your body. Your heart pumps oxygen-rich blood to your muscles. And your muscles use that oxygen to produce energy.
Regular physical activity trains this entire system.
Over time, activities such as walking, cycling, swimming, dancing, or water aerobics may allow you to do more work with less effort.
The CDC recommends adults work toward at least 150 minutes of moderate-intensity aerobic activity each week, along with strength and, for older adults, balance activities.
But don’t get discouraged by that number. If you’re inactive today, start with 10 minutes. Then build from there. Some movement is better than none.
3. Pay Attention to the Air Outside
We tend to think of air pollution as something that happens somewhere else. Unfortunately, that’s not always true.
Wildfire smoke, ozone, vehicle exhaust, and tiny particles in the air can affect the lungs. Small particulate matter can travel deep into the respiratory system, and people with heart or lung disease—as well as older adults—may be especially vulnerable.
Fortunately, checking the day’s air quality is easy. The EPA’s Air Quality Index, or AQI, tells you how clean or polluted the outdoor air is.
On days when the air quality is poor, particularly from wildfire smoke or particle pollution, consider moving your exercise indoors or reducing prolonged strenuous outdoor activity.
This doesn’t mean you should be afraid of going outside. It means using the information available to make smarter choices. Bad air day? Make it an indoor exercise day.
4. Don’t Forget About the Air Inside Your Home
We spend a lot of time indoors. And indoor air isn’t automatically clean air.
Potential pollutants include tobacco smoke, cooking fumes, fireplaces, candles, mold, dust, cleaning chemicals, carbon monoxide, and radon. The EPA recommends reducing pollution at its source, improving ventilation when appropriate, and using filtration or air cleaning when needed.
A few simple steps can help. Use your kitchen exhaust fan when cooking. Make sure combustion appliances are properly vented. Change heating and air-conditioning filters as recommended. Address moisture problems that contribute to mold. And make sure your home has working smoke and carbon monoxide detectors.
There’s one more invisible hazard worth mentioning: Radon.
Radon is a naturally occurring radioactive gas that can enter homes through the ground. Long-term exposure increases lung cancer risk, particularly in smokers.
You can’t see it. You can’t smell it. Testing is the only way to know whether your home has elevated radon levels.
5. Protect Yourself From Dust, Fumes, and Chemicals
Some lung damage occurs slowly over many years.
Maybe you spent decades working around construction dust, welding fumes, chemicals, asbestos, silica, diesel exhaust, or other airborne substances.
Or perhaps your exposure comes from hobbies. Woodworking, painting, refinishing furniture, gardening products, and home renovation can all expose you to irritating particles or fumes.
Occupational exposures to dusts, gases, vapors, chemicals, and other irritants can cause or worsen chronic lung disease.
Use proper ventilation and appropriate protective equipment when exposure can’t be avoided. And be careful with household cleaning products. More isn’t necessarily better.
Some cleaning products release volatile organic compounds that can irritate the respiratory system. Never mix bleach with ammonia-containing cleaners because the resulting gases can be dangerous.
Your lungs don’t need to smell “lemon fresh.”
They need clean air.
6. Protect Yourself From Respiratory Infections
A respiratory infection that causes a few miserable days in a healthy 25-year-old may cause much more serious illness in someone who is 75, particularly if that person already has heart or lung disease.
That makes prevention increasingly important as we age.
Wash your hands when appropriate. Avoid close contact with people who are clearly ill when possible. Good ventilation can also help reduce the concentration of respiratory viruses indoors.
And keep recommended vaccinations up to date.
Depending on your age, health conditions, previous vaccines, and other factors, that may include vaccines against influenza, COVID-19, pneumococcal disease, and RSV.
Current CDC recommendations, for example, include pneumococcal vaccination for adults age 50 and older who have not previously received a pneumococcal conjugate vaccine. RSV vaccination is recommended for everyone age 75 and older and adults ages 50–74 who are at increased risk for severe RSV disease. Recommendations can change, so discuss your individual situation with your healthcare professional.
Vaccines can’t prevent every respiratory infection.
But their most important benefit is reducing the risk of serious illness and hospitalization.
7. Don’t Ignore What Your Lungs Are Telling You
This may be the most important lesson of the week.
Don’t automatically blame breathing problems on getting older.
Pay attention to symptoms such as:
- Persistent or worsening shortness of breath
- A cough that doesn’t go away
- Wheezing
- Coughing up blood
- Repeated respiratory infections
- Unexplained chest discomfort
- A noticeable decline in your ability to exercise
There are many possible explanations for these symptoms. Some are relatively minor. Others deserve prompt evaluation.
And remember that breathlessness isn’t always caused by the lungs. Heart disease, anemia, deconditioning, and several other medical conditions can cause similar symptoms.
The important thing is to notice when something has changed. Age is not a diagnosis.
You Don’t Need Perfect Lungs
One message I hope you’ve taken away from our discussion this week is that healthy aging isn’t about trying to turn your 70-year-old body into a 30-year-old body. That’s not the goal.
The goal is to protect what you have and improve what you can.
Don’t smoke. Keep moving. Pay attention to the air you breathe. Protect yourself from unnecessary exposures. Reduce your risk of serious respiratory infections. And don’t ignore persistent symptoms.
None of those things is particularly exciting. There’s no miracle supplement involved.
But these are the kinds of ordinary decisions that, repeated over years, can make an extraordinary difference.
Remember This
Your lungs have been working for you every minute of every day for decades.
You can’t prevent them from aging.
But you can give them cleaner air, regular activity, protection from infection, and attention when something doesn’t seem right.
That’s a pretty good way to say thank you.