It's been six days since Buffalo Bills player Damar Hamlin collapsed on the field in front of millions. Many feared the worst. But just two days after suffering a cardiac arrest, he woke up and has ...

Dr. Mehmet Oz demonstrates how to operate an automated external defibrillator, which helped save the life of celebrity trainer Bob Harper during a heart attack. When "The Biggest Loser" trainer Bob ...

Connie Harvey from the American Red Cross explains how to use an AED, an automated external defibrillator, when attempting to restart someone’s heart after they collapse. She says the first two steps ...

What is an AED? Here's why it can save lives. (Photo: Getty Images) About 90% of the 350,000 cardiac arrests that happen outside a hospital each year are fatal. However, a simple medical device, an ...

They’re becoming more available in public places–but how do you use a defibrillator machine? Dr. Troy Madsen talks about public defibrillators, when to use them, and how they might save someone’s life ...

July 26, 2010 — -- This morning on "Good Morning America," ABC News' senior health and medical editor Dr. Richard Besser demonstrated the proper way to use an automatic external defibrillator ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. ST. LOUIS – February is American Heart Month ...

When a 911 call comes in, a dispatcher coordinates with a drone pilot to fly autonomously to the location of the cardiac ...

When 12-year-old Jiahni was diagnosed with Long QT syndrome, a heart condition that can cause dangerous irregular rhythms, every football practice, game, and sprint came with added worry for his ...

Jon LaPook, M.D. is the award-winning chief medical correspondent for CBS News. Since joining CBS News in 2006, LaPook has delivered more than 1,200 reports on a wide variety of breaking news and ...