Could the power of fake pills be used to treat some of our most common medical complaints? To find out, Dr Michael Mosley embarks on Britain's largest ever trial to investigate the placebo effect.

Horizon reveals the latest research into one of the most mysterious and common human experiences - pain.

Michael Mosley tells the story of the creation of our most useful and valuable drugs.

Dr Michael Mosley discovers why we want to control pain and how we ultimately did it.