In Canada, 1 in 8 women will be diagnosed with breast cancer in their lifetime. It’s the second leading cause of death from cancer in Canadian women and second most common cancer in the country. Currently, guidelines say that screening should begin at the age of 50, but the task force in charge of these recommendations might lower the age to 40. And that has re-ignited a heated debate. Carly Weeks is the Globe’s health reporter. She’s on the show to explain why there’s advocates for and against this change – why some see it as a way to save more lives and others see it as causing more harm than good. Questions? Comments? Ideas? Email us at thedecibel@globeandmail.com