Today:

Is Your Sugar-Free Gum Raising Your Heart Attack Risk? The Xylitol Study Explained

And...

A throwback episode to when I hosted Dean Karnazes in front of a live audience in London. 

TIME Magazine called him one of the "Top 100 Most Influential People in the World"

He is a long-distance runner so impressive that Men's Fitness honored him as one of the fittest men on the planet.

Even if you aren't angling to run a marathon (or run anything for that matter), Dean's got a lot to say on getting and staying motivated no matter what you're up against. He's also quite simply a very nice man, one of life's winners who's a good guy as well.

Check out Dean's website www.ultramarathonman.com

 

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