COPENHAGEN, Denmark -

The country of Denmark is seeing positive results from a nationwide effort to train its citizens in CPR. Ten years ago, the nation made learning CPR a requirement in school.
Leaders wanted to see if more people trained would mean more lives could be saved. Citizens had to know CPR to get their driver license.The country provided free instruction materials.

The effort has paid off. During the last ten years, the number of cases of patients given CPR by a bystander more than doubled.Survival rates nearly tripled. In the United Sates, the American Heart Association encourages CPR that does not require mouth-to-mouth breathing, only rapid compressions on the person's chest to keep circulation and oxygen flowing while emergency help is on the way.