RSS stands for "Really Simple Syndication." It's a format that web sites and blogs can use to send updated headlines to you via services like My Yahoo!. Syndication means you don't have to visit each site individually to see what's new—you simply scan headlines or brief article summaries and click to read the full text. That's the "really simple" part. And it's "really simple" for publishers to make their content accessible this way too.
For a list of current health news feeds, go to the Yahoo! Health RSS page.
You can add Yahoo! Health RSS news feeds to your My Yahoo! page. For more information on adding RSS to My Yahoo! or using RSS, consult My Yahoo! Help.