Millions of people around the world experience chronic pain but little is really known about it or how to best treat it.

Paul Biegler is a former doctor, academic and science journalist who started investigating chronic pain after pain from a knee injury endured for months longer than he expected it to. He was given pain killers and told he’d need surgery.

Then he began reading about the idea that your brain can think you have an injury when you no longer do.

His book is called Why does it still hurt? How the power of knowledge can overcome chronic pain. He joins Kathryn from Monash University in Melbourne

Listen to the full interview here