Choose an academic issue or dilemma that is very important for public audience. In other word, your argumentative writing should be focused on the ‘audience needs, desire and interest. (Please attempt to find something in health area or in society area, if you can)
Pay a special attention to principles of developing accessible writing, formality, and informality and concision and tone.
Try to engage with your reader and tell who your readers are. You may consider narrowing the domain of readers, only a specific group.