...It was first developed in Canada. Having found out that people who fall into cold water or frozen lakes can survive longer the Canadians pioneered a new branch of intensive care medicine. I saw it in action today visiting a friend whose body is being kept at 34 degrees in an intensive care unit in Amsterdam to minimise the brain damage by slowing her metabolic rate. My professional ethics do not allow me to say much more except that her chances of survival are not very good. I wish her well.