Xylitol Bad? And 80 Hours Without Sleep (feat. Dean Karnazes) #727

Xylitol Bad? And 80 Hours Without Sleep (feat. Dean Karnazes) #727

Author: Tony Wrighton August 31, 2026 Duration: 1:03:13

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

 


Tony Wrighton has spent years navigating the unconventional edges of wellness, and in Biohacking News by Zestology, he turns that curiosity into a weekly conversation. As a journalist and author, Tony doesn't just report the headlines; he digs into the practical science and the wilder trends shaping how we think about our bodies. This podcast serves as a direct line to the people driving the biohacking movement. You'll hear Tony in candid discussions with a roster of leading voices like Dave Asprey on bulletproof living, Dr. David Sinclair on longevity, Ben Greenfield on peak performance, and Esther Perel on the human connection behind the tech. Each episode feels like a behind-the-scenes look, whether it's a review of a new wearable device, a breakdown of a controversial nutritional approach from someone like Paul Saladino, or fitness insights from JJ Virgin and Joe Wicks. It’s a mix of grounded advice and explorations of what's next, all filtered through Tony's experienced perspective and his bulging contacts book. For anyone intrigued by optimizing health but wary of the hype, this is a essential guide to what works, what doesn't, and what's just plain fascinating in the world of human enhancement.
Author: Language: English Episodes: 50

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