Here’s something that could help you save the life of someone you’d rather not kiss. The American Heart Association says that hands-only CPR works just as well as mouth-to-mouth.
Sometimes doing the mouth-to-mouth part incorrectly can actually make things worse, the article says.
…the aim of CPR is to do some of the mechanical work of the heart by forcing at least some blood and oxygen to the brain and other vital organs, which is why chest compressions work.
The only cases in which mouth-to-mouth seems to make a difference is when the victim is a child, or in cases of adults who have stopped breathing because of choking, drowning or other respiratory problems.