CPR for dummies.

The American Heart Association has radically modified its CPR instructions, reports USA TODAY:

Call for help. Push the chest. Don't stop.

Two rescue breaths can be given after every 30 compressions, but mouth-to-mouth is optional.

"Some CPR is better than no CPR," says Robert O'Connor of Christiana Care Health System in Newark, another guideline author. Until emergency medical responders arrive, chest compressions alone can often be just as effective in saving a life, he says.