"You may already be aware of this CPR technique. Even so, it's well worth watching again as a refresher." Jim Hamm passes on this video link. http://medicine.arizona.edu/spotlight/learn-sarver-heart-centers-continuous-chest-compression-cpr The forwarded email says, "This short video illustrates the best demonstration and gives the simplest explanation of exactly what to do if someone near you collapses and is presumably having a heart attack. You could very well save the life of a friend of a loved one. Someone you share this video with might save your life!"