This week we’re at the Preventing Overdiagnosis conference in Quebec Canada, The conference is a forum to discuss the harms associated with using uncertain methods to look for disease in apparently healthy people - and is part of the BMJ’s too much medicine campaign.

The literature on overdiagnosis has mostly been published since 2013 - partly because of The BMJ, but in large part because of the work of Rita Redberg, professor of clinical medicine, and a working cardiologist, at UCSF, and editor of JAMA internal medicine who joins us to discuss why less is more.