This article was originally published in 2011.
The new year brings a lot of resolutions to exercise. And sometimes the cold weather also means more snow shoveling. All that exertion can be harmful to people with abnormal hearts by leading to sudden cardiac arrest. Dr. Gordon Tomaselli, director of cardiology at Johns Hopkins Hospital, talks about the difference between sudden cardiac arrest and a heart attack and what those at risk can do.
Question: What is sudden cardiac arrest?
Answer: Sudden cardiac arrest refers to collapse and loss of consciousness due to a dramatic fall in blood pressure. This is often but not always the...