Brain surgery carries with it an awesome burden of responsibility, and within neurosurgery there are particular challenges that take the physical and ethical pressure to an extreme. Imagine doing complex brain surgery on small children; then imagine trying to split conjoined twin babies joined at the head.

Stephen Sackur speaks to neurosurgeon Owase Jeelani, whose work has made headlines in the UK and around the world. How does he deal with the extreme stress of life-and-death decision-making? Show less