An estimated 20 million Americans haveÂ sleep apnea, and many donâ€™t even know it. On the Mayo Clinic Radio podcast,Â Dr. Timothy Morgenthaler, a Mayo Clinic sleep medicine specialist, discusses diagnosing and treating sleep apnea. Dr. Morgenthaler also serves as chief patient safety officer for Mayo Clinic. Also on the podcast,Â Dr. Brent Bauer, director of research for the Mayo Clinic Integrative Medicine Program, andÂ Dr. Karen Mauck,Â a Mayo Clinic internal medicine specialist, discuss how to know whichÂ CBD productsÂ are safe to use. AndÂ Dr. Kaisorn Chaichana, a Mayo Clinic neurologic surgeon, explains minimally invasive surgical techniques for treatingÂ brain tumors.