Add Yahoo as a preferred source to see more of our stories on Google. Sierra Tailele-Mejia and Alex Garcia demonstrate Hands-Only CPR live, showing viewers and our hosts how to respond in an emergency ...

In an effort to bring more awareness to what American Heart Associations calls ‘CPR Week,’ Chris & Joe learn hands only CPR from Marcus Sia, Chief Nursing Officer at Abrazo Arizona Heart Hospital.

If you find someone unconscious or someone collapses around you, what do you do? They might be in cardiac arrest, and if that's the case, you'll want to to hands-only CPR right away. Here are tips ...