There are a few ways for you to decide the topic of your "Check the Facts" assignment:
Think about health topics you have a personal connection with. Is there anything that affects you or people you know that you would like to learn more about?
Read the news! Have you heard about something of interest through social media or news lately?
Browse CQ Researcher for current topics of interest.
Browse the "Health and Medicine" category of Procon.org.
Wikipedia can be a great source to learn more about a particular topic. However, you should NEVER include a Wikipedia entry in your paper or references.
Explores a single hot issue in the news in-depth each week. Topics range from social and teen issues to environment, health, education and science and technology.