A doctor from BBC Morning Live has encouraged people to learn CPR, along with a straightforward 'three-step' life-saving technique which is easy and simple to do. Dr Xand van Tulleken, discussing what to do in an emergency, such as when someone faints or gets injured, emphasised that there’s one crucial step to take first. Should I call 111 or 999? "The first step you want to take is thinking about calling 999 or 111." Stressing not to worry if you don't know who to call, he says you can call