Cardiologist, scientist and bestselling author Dr. Eric Topol's latest book "Super Agers" distills decades of research on how to make us healthier for longer. Topol says that humanity is on the cusp of developing treatments to help tame cancer, dementia and other chronic diseases… just as political forces in the U.S. are shutting down that research.

This holiday season, many of us will be taking to the skies to visit family or escape to warmer climes. So we’re sharing a recent episode of our sister podcast, The Dose, which asks: “What do I need to know about in-flight medical emergencies?” Dr. Vincent Poirier, associate professor of emergency and aviation medicine at McGill University, senior medical advisor for Air Canada and medical consultant for Air Transat, explains what happens when a medical emergency occurs on board and how passengers can help prevent them.

B.C. emergency room physician Dr. Kaitlin Stockton took the rare step of suing her regional health authority, alleging her job was threatened after she and other doctors warned patients about unsafe, overcrowded ER conditions. The lawsuit has since been resolved to both sides’ mutual satisfaction. Dr. Stockton hopes her experience will empower healthcare workers and patients to speak up about patient safety.