BBC World Service: The Engineers - Exploring the Human

Engineering has moved inside the body to innovate like never before. In neuro-science, brain implants can provide ‘psychic’ communication for people with locked-in syndrome. In medication a new technology aims to deliver chemo therapy and other drugs directly to the parts that need them by bubbles in the blood stream. And ingestible electronics are being made to fight disease by sending antibody-directing messages straight from the gut to the brain.