Jamie Merricks was born with his umbilical cord wrapped around his throat. He couldn't breathe and suffered damage to his brain.
Doctors tried to repair the brain damage by cooling Jamie's brain and bringing his body temperature down to well below normal.
Jamie's doctors say cooling his brain decreased the metabolism, helping it to recover and limiting the damage.
They believe the new treatment is the biggest breakthrough in the care of newborns in the last 20 years.