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Welcome to the Runner's World Show, where each week we entertain, inspire, and inform you about all things running.

I'm Christine Fennessey, one of the producers here at Runner's World. This week we have a very

special show for you, a roundtable on the topic of heart health and running. Every year, typically

during marathon season, we hear stories, some inspiring and others tragic, of people suffering sudden cardiac arrest in a race.

And in the past few years, there's been a steady drip of news articles with hyperbolic statements like,

Too Much Running Will Kill You.

It's a lot of information to digest, and it can all get very confusing, very fast.

So when Dr. Jordan Metzl proposed assembling an all-star

roundtable of experts on the Runner's Heart, we thought, yes, this is the perfect way to make sense

of the headlines. In addition to being a marathoner in Iron Man, Jordan is a sports medicine physician,

author, creator of the Iron Strength Workout DVD series, and a member of our advisory board here at Runner's World.

He was also the moderator of this discussion, which took place in Boston this past April, on Easter Sunday, the day before the Boston Marathon.

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