How do i write a rough on a paper my topic is many people appear obsessed with exercise ( diet).

Follow the ENTIRE writing process, whether you're writing for science, history, English, or whatever:

Prewriting: Brainstorm, research, plan, outline, thesis statement

Writing: Write first draft by starting with section II of your outline; write the introduction after the body of the paper is written; write the conclusion last.

Polishing: Revise, concentrating first on the body of the paper, then the intro, then the concl (revision = making sure ideas are logical and sequential and support your thesis); proofread (spelling, grammar, usage, etc.)

Do you have a thesis yet? Have you done your brainstorming (and maybe research) yet? Have you written an outline?

http://leo.stcloudstate.edu/catalogue.html#org
from http://leo.stcloudstate.edu/catalogue.html

http://www.angelfire.com/wi/writingprocess/

http://grammar.ccc.commnet.edu/grammar/
Check in the Essay & Research Paper Level.