Another study has been published showing that CPR can be done without mouth-to-mouth breathing. The report, published in the journal of the American Medical Association, says chest-compressions alone can yield a better chance of survival for people suffering cardiac arrest, especially when the CPR is done by a lay-person.

The good news does have a somber note, though.  The chest-compression technique improves the odds of survival by 60%, but the chances of survival outside of a hospital setting are still less than 15%.

The study says the reasons for that low number include a lack of knowledge about proper CPR and an unwillingness of people to even try to help.

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