You can't undo damage that is already done, but you can improve the efficiency of what is left. It depends on which lung disease you're talking about, as some are very terminal and some very quickly terminal, but there are some that can be managed and controlled. COPD is one of those; in fact if you have to have a lung condition, COPD is far more forgiving than most and easier to manage and control than others.

For COPD, the first thing is no smoking. If you continue to smoke, all bets are off and things will continue to deteriorate. It will be slow, but it will be steady. It's death by inches, not pretty at the end and not something to be wished on anyone.

Exercise. The first poster said it very clearly: exercise is the best thing we can do for ourselves. Daily exercise of at least 30 minutes of aerobics and then strengthening/resistance/weights at least three times a week concentrating on upper, lower and core muscle groups. Don't find your comfort level and stay there; keep pushing yourself slowly, but surely. It's the only way you will make progress. Exercise makes your heart and lungs much more efficient and able to do the everyday things in life a lot easier with much less effort and less energy, leaving you with energy to do the fun things in life.

After that, weight control and diet, take your meds, get your flu and pneumonia shots as prescribed, get a COVID vaccine when available, stay away from people with bugs and get medical attention ASAP if you do get something respiratory. That last is critically important. We all get colds and we just put up with it until its over; we get the flu and we stay in bed for a couple of days and then go on........we CAN'T DO THAT ANYMORE. You can't just tough it out; that's a gold plated invitation to an ICU bed, so get medical attention ASAP if you do catch something.

Develop an action plan with your pulmonologist (and if you don't have a pulmo, get one. PCP's are good, but you don't let them manage your cardiac conditions; don't let them manage your lungs, either). Google "action plans for COPD" and take one of the forms with you to your next appointment. Figure out what things you should do and when. Many of us have an arrangement with our docs to have antibiotics and prednisone at home for quick responses to a bug that shows up.

These things take time, effort and energy, but they are guaranteed to help enormously. Get moving.

I should have said that I've had COPD since 1985 and I've been stable in the severe stage all that time using these tools. I'm 76 and until COVID caused a screeching halt, I was traveling by air at least twice a month for part-time work and as a COPD advocate, I had an active social, family and church life and life was full and satisfying. It's still full and satisfying, but at home.

Me personally exercising is the answer, not a cure sorry to say, but over a period of time and you must do it regularly, and i use weights for strengthening the chest muscles, this is the key, not easy to start, but a must,

There is no cure but can help it from getting worse or I should say slow it down

Hi everyone Since the last Covid jab I have been plagued with side effects. One was a common cold lasting about 4 weeks it has subsided a little . Only yesterday I was prescribed prednisone to help clear up my chest. Anyway it's important to exercise regularly and eat properly . I do go to the gym regular 4 times a week to keep up strength. Also I'm thinking of buying a re prednisone rebreather gadget to strengthen my diaphragm. Too has anyone ever seen or used one? Happy breathing.. Gordon