You can skip the mouth-to-mouth breathing and just press on the chest to save a life.
The American Heart Association is promoting a major change in dealing with sudden cardiac arrest in adults.
It says that hands-only CPR works just as well as standard CPR
in those cases.
You should use rapid, deep presses on the victim's chest until
Experts hope bystanders will now be more willing to jump in and
help if they see someone suddenly collapse. Hands-only CPR is
simpler and easier to remember. And it removes a big barrier for
people skittish about administering mouth-to-mouth to strangers.
Mouth-to-mouth breathing should still be used on children, since
a child who collapses is more likely to have breathing problems.