Until recently it was assumed that placebo pills would only produce a therapeutic benefit if patients didn't know that's what they had been given. But there are early suggestions that patients can still get symptom relief even when they're told that there is no active ingredient at all in the pills they've been given. So should placebo pills be openly prescribed to patients? Ted Kaptchuk, Professor of Medicine at Harvard University tells Mark he believes open-label placebo could, if evidence continues to accumulate, form part of the physician's therapeutic toolbox. But Inside Health's Dr Margaret McCartney urges caution. She says there is insufficient evidence about the long-term impact on symptoms.

Nearly 500 people died on the transplant waiting list last year and if you're one of the 7,000 waiting for a life-saving organ, how would you feel if the organ on offer came from a donor infected with hepatitis C? Such organs are about to be available on the NHS and this radical change has come about because of the revolution in treatment for this potentially-serious blood borne viral infection. Yes recipients of Hepatitis C positive organs will be infected by the virus after transplant, but a short course of treatment, direct acting antivirals, will then cure them. Consultant kidney and transplant specialist Dr Adnan Sharif from Queen Elizabeth Hospital in Birmingham explains why patients on the waiting list should have this option available to them and Professor James Neuberger from the UK government's advisory committee on the Safety of Blood, Tissues and Organs, tells Mark why SaBTO have recommended this policy change and are now keen to see it implemented.

Back pain is common but most of us recover in a matter of weeks. For 10-20% of people though, the pain and discomfort doesn't go away and they suffer chronic pain throughout their lives. What many people don't know is the extent to which genes feature in back pain - it runs in families. Frances Williams is Professor of Genomic Epidemiology at Kings' College, London and a consultant rheumatologist at Guy's and St Thomas' NHS Trust. She tells Mark about the genetic clues that emerged from the world's largest ever study of 500,000 individuals with chronic back pain across five countries.

Producer: Fiona Hill