I don't personally have CF but my best friend and her younger sister have it. My best friend isn't as open as her sister is about it and i know that she has a worse case of it. What makes one case worse then the other? My friend has been hospitalized numerous times and she's 22 her sister is 19 and hasn't been hospitalized yet. My friend also gets some type of therapy every night i guess to help her to breath. I keep hearing different life expactancys(sp?) and it worries me. How long do you people with CF live?? are there different types of CF? I know it is genetic? how do they get it? and how come her parents don't have it? <img src="i/expressions/musicnote.gif" border="0">