Essentially, when you breathe in the lung take in oxygen and pass it along to the bloodstream, which brings it to your bodies cells. In return it picks up carbon dioxide, which the lungs dispose of. Every time you breathe this process is happening. That is why it's crucial to keep your lungs healthy.
Answer:
its like any other disease
Explanation:
was there more to the question?
Answer:I think they would die from not doing anything.
Answer: parallax is the best answer