COPD is a serious lung disease that makes it harder and harder to breathe.
With COPD, your lungs don't work as well as they once did, so you'll find it more and more difficult to breathe. As the disease progresses, your symptoms tend to get worse and more damage occurs in the lungs. This damage is permanent.
What's more, tobacco smoke causes up to 90% of all COPD deaths. This includes exposure to secondhand smoke. The good news is that COPD can be prevented. A smoker is at least 10 times more likely to die of COPD than a nonsmoker. So, if you're a smoker, you can see why it's important to quit. Don't leave your loved ones with an achy breaky heart, stop smoking now!
Source: Drive For COPD