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Mark Sisson tries something new with this podcast episode, as he reads an essay based on one of his most popular posts ever on MarksDailyApple.com: \\u201cA Case Against Cardio.\\u201d The original post, published in June 2007, helped shed light on the concept that extreme endurance training can actually compromise health and increase disease risk. Mark published several follow up posts over the years on the topic of chronic exercise and the ways to avoid the stress and damage caused when exercise patterns drift away from optimal stress/rest balance and into the extreme category.

Mark\\u2019s essay covers the original landmark post, along with assorted commentary from follow up posts. For devoted fitness enthusiasts with passions for Crossfit, marathons, triathlons, heavy gym class participation, or even high-energy weekend warriors who are balancing exercise goals with hectic daily life, this is a very important podcast to absorb and ponder carefully how your own exercise and stress management patterns are looking these days.

Next week, Mark will continue the theme with a\\xa0Chronic Cardio Part 2\\xa0podcast where he and host Brad Kearns talk about some of the real-life cases of elite athletes being stricken with serious heart problems, some of the science behind what happens to the body when it\\u2019s pushed too hard with insufficient rest, and how you can avoid these negative consequences.