Dr. Anne Marie Lennon describes a new way to detect eight common types of cancer using a simple blood test. This talk was filmed at TEDxMidAtlantic. All TEDx events are organized independently by volunteers in the spirit of TED's mission of ideas worth spreading. To learn more about TEDxSHORTS, the TEDx program, or give feedback on this episode, please visit http://go.ted.com/tedxshorts.