How do smokers’ lungs get used to smoke, and can they then handle inhaling all smoke (e.g. fire)?

Question

How do smokers’ lungs get used to smoke, and can they then handle inhaling all smoke (e.g. fire)?

In: Biology

Answer 1

The lungs don’t get used to smoke, they actually get damaged by it. Heavy smokers actually don’t use their full lung capacity to breath due to damage.