I have to write a paper for my bio class and the teacher is giving us alot of freedom on it.

Its a research paper on many topics about the body.

I chose sinus infection and lung disorders. Its way too broad of a topic. She said to really focus on it anyway we wanted so it can be just a paper on sinus infection or just on lung disorders.

Does anyone has any suggestions on how to narrow it down? I wanted to do lung disorders. I guess the best way would be to focus on a major lung disorder that many people are dealing with today.

Does anyone have any suggestion?

go to a website called lungUSA and at the top it will say diseases A-Z

this site has every lung disorder
it's really good