Media playback is unsupported on your device

Stroke patient hibernation trials

19 March 2012 Last updated at 15:10 GMT

Scientists in Edinburgh will play a leading role in a study to see whether lowering the temperature of stroke victims can improve survival rates.

Patients in the trial will have their core body temperature cooled by two degrees to prevent further damage from strokes.

Around 80 Scottish patients will take part in European trials over the next four years.