Could detecting cancer be as easy as drawing blood?Could detecting cancer be as easy as drawing blood? A tiny experimental device may be the answer to spotting cancer early without any aggressive procedures. Researchers are developing a "blood biopsy," which involves taking a sample of a person's blood and running it through a postage stamp-sized chip that can identify cancer cells. This could allow doctors to check for cancer more frequently and with more ease. Plus, patients would be able to avoid invasive biopsies. Lead researcher, Dr. Edwin Posadas, MD, FACP, director of the Urologic Oncology Program at Cedars-Sinai, joins Dr. Roizen to explain how this technology works and what it could mean for you. Bonus! 6 Worst Things for a Woman’s Heart