Are we on the cusp of a new era where computers rather than doctors will be doing the diagnosing. Ali Parsa, founder of Babylon Health, believes we are and is developing an online tool using artificial intelligence that diagnoses quicker and more accurately than a doctor. He debates the issues with resident sceptic Dr Margaret McCartney. Mark Porter visits the world's first national tissue bank for pancreatic cancer, set up to aid research into a disease that has seen no outcome improvement for over 40 years. Plus statins and muscle aches; could the drugs' bad press in the media actually increase the odds of people experiencing side effects - the so called nocebo effect?