A growing international divide over cutting-edge medical research could worsen predatory practices, medical tourism and health inequality.
Italian surgeon, Sergio Canavero, claims that he is ready to perform the world's first head transplant. But does the science stack up?
Science fiction can't become science fact if neuroscientists are to carry out some daring surgery.
The science behind an Italian doctor's plans to give a man a whole new body might be advanced, but philosophers have been asking what makes a person for centuries.