Meet Mark

Let me introduce myself. My name is Mark Sisson. I’m 63 years young. I live and work in Malibu, California. In a past life I was a professional marathoner and triathlete. Now my life goal is to help 100 million people get healthy. I started this blog in 2006 to empower people to take full responsibility for their own health and enjoyment of life by investigating, discussing, and critically rethinking everything we’ve assumed to be true about health and wellness...

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Category: Sprint

Interview with Simon Whitfield: Olympic Gold Medalist

As many of you know, I have a long history as a former elite endurance athlete. Back in the day, I achieved a 2:18 marathon and landed 4th place in the Hawaii Ironman. That was all well and good, but above all I was vying for Olympic gold. There was just one small issue: I was giving my body the beat down in the process. At the time, guided by traditional training advice, my eye was on the prize, not the long term sacrifices I was making to get there. I couldn’t see the forest for the trees, so to speak. After years of spending time in the endurance game,  life had other things in store for me—researching, blogging, and sharing my story with all of you, for example. And I’ve never looked back. But that hasn’t stopped me from respecting the awesome achievements made by my past contemporaries, or the great wisdom they have to share as a result of their boundary breaking feats.

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How to Personalize Primal Blueprint Fitness

The Primal Blueprint 21-Day Challenge manifests differently for everyone. Some folks are focused on improving their diets, on removing this food or adding that food. Some have committed to optimizing their sleep by getting to bed at a certain time and eliminating nighttime electronics. And many just want to look better naked. But there’s one tie that binds nearly everyone I’ve interacted with through the course of this and previous challenges: physical activity. Whether you’re trying to eat, sleep, or look better, exercise matters. Effective exercise especially matters for everyone, and my intent when creating Primal Blueprint Fitness was to democratize fitness without compromising it—to distill effective training down to its essential elements so that everyone could practice it.

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A Case Against Cardio, Part 27

I’m mostly joking with the title. Though, considering how much I’ve written on this topic since starting this blog way back in 2006, it’s probably not too far off. And it’s not just me. Endurance training has been getting the snot beaten out of it in recent years. A variety of media outlets, TED talks, other blogs, observational research and clinical trials have all sounded the alarm about the dangers of excessive chronic cardio.

A new string of studies has found evidence of higher arterial plaque levels in the most active endurance athletes. This is becoming a trend. While endurance athletes tend to have more of the calcified kind of plaque, which is more stable and theoretically less prone to dangerous ruptures than less-calcified plaque, it remains worrying. I’ve spoken in the past about the proclivity toward heart problems found in endurance athletes. I know many former peers with atherosclerosis, cardiac arrhythmias, and other heart troubles.

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Dear Mark: Baby Sleep/Feed Schedule and Walking Through a Sedentary Society

For today’s edition of Dear Mark, I’m answering two reader questions. The first comes from reader Larisa. She is about to give birth, has been hearing the “wake your newborn every 2 hours to feed” recommendation, and wonders how realistic, evolutionarily-congruent, and healthy that will be for new parents desperate for sleep. I offer a few loose recommendations that hopefully make her feel better about what’s about to descend upon her life. Second, is there such a thing as too much low-level activity? Mariel walks 10+ miles a day, strength trains, and stands when she gets tired of walking. Her coworkers think she’s crazy. What do I think? Find out below.

Let’s go:

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Top 7 Emerging Paleo Trends

Things are changing. You can throw a stone in any direction and hit either a CrossFit gym, a Whole Foods, or (on Sundays) a farmer’s market. People have actually heard of paleo and most places have a decent salad on the menu. Going Primal isn’t so strange or alienating anymore. Now that the status quo is catching up to us, it’s time to look to the horizon. What are the emerging trends in Primal/paleo thinking that will break out and propel us forward? Where are we taking this train next? And is the world changing in ways conducive to our Primal lifestyle?

Let’s see the top 7 emerging trends.

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Why Older (and Younger) Runners Need to Strength Train

Last month, the NY Times Well Blog dropped a piece discussing the results of a recent study of how endurance runners alter their stride as they age. Investigators observed a group of 110 experienced runners aged 23 to 59 making their way around a track. Runners under 40 tended to display greater lower leg activity as they ran, whereas runners over 40 showed impaired lower leg activity. The latter relied more on their hip musculature (the absolute activity of which was still lower than that of younger runners) and showed an impaired “push off”; they had weaker strides and didn’t rise up as high off the ground. Overall, the older runners used their ankles and calves less without increasing hip musculature activity to cover the difference. They just got slower.

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