You can't even manage the subject of your post correctly.
YOU REALLY SCREWED UP, LORI!!!
Syke, just messing.
You say you haven't written formally for 30 years? That's ok.
It's certainly commendable that you are willing to reach out for help, but in order for others to help you, you must take a few steps on your own.
The topic of your paper is Alzheimers disease, and so I assume this is a research paper.
All what you have to do in a research paper is find some good references such as encyclopedias, journal articles, or books, and paraphrase what they say. Of course, it's important to recognize what's pertinent to the discussion, and what isn't.
The research paper is like any other essay in that it must have an intro, body, and conclusion.
The intro in this case however, won't include much of an original thesis because it will be some variation of the statement "I'm going to talk about alzheimer's." That said, you should try to dress up the introduction in your unique writing style so the reader can get a sense of your flair for writing effectively, and tying your genuine contribution of your introduction, with the body on Alzheimer's which will mostly paraphrase somebody else's writing.
All you have to worry about is making an intro and a conclusion. The rest is just your ability to read something, repeat what you have read to somebody else, and avoid the distinction of writing what they have said verbatim.
So check out some books from your local library or collect some worthy references online, read up a good bit on Alzheimer's, and paraphrase what you've read. It's not hard.
Remember, you can shadow the organization of the body closely, of whatever your main sources are, so it's even easier than you thought.
Write a paper and submit it here for revision, at which point we'll have something to work with, and be in a better position to help you. Have confidence in yourself.
Mustafa