After you do your F1 and F2 years, you apply for neurosurgical training. Currently, this is 'run-through' which means unlike other surgical specialties, once you've got an initial training post in neurosurg, you're in for the long haul. Fascinating career that I love the sound of, but the number of people including neurosurg registrars who believe you're trying to fix the unfixable and your removal of a blood clot from the brain at 3am only results in the patient going to a long term care facility brain damaged make neurosurgery about the most self-selecting career you can find.