Stacey Dooley, Jonnie Peacock, Ann Widdecombe and Michael Mosley work alongside staff at King's College Hospital to find out just what it takes to keep the nation alive.
Michael Mosley
Stacey Dooley
Jonnie Peacock
Ann Widdecombe
Score: 6.4
Score: 5.1
Score: 2.0
Score: 6.6
Score: 9.0
Score: 0.0
Score: 6.0
Score: 7.3
