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

Women’s Fitness: Should It Change with Age?

Generally speaking, the basic Primal Blueprint for fitness and physical activity applies equally to men and women of all ages. Lifting heavy things works in everyone. Sprinting is a fantastic way—for anyone who’s able—to compress workouts and improve training efficiency. Improving one’s aerobic capacity through easy cardio doesn’t discriminate between the sexes. And everyone should walk, hike, garden, and perform as much low level physical activity as possible. These basic foundations—the 30,000 foot view of fitness—don’t really change across age or sex.

But the details do, especially for women.

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Top 10 Paleo Apps

“Apps aren’t paleo, Sisson. Grok waited for days for aurochs to wander within spear-chucking range, not overnight for the release of the iPhone X.” True. But this is the world we live in. These are the tools we have.

If you’re going to lug around an addictive piece of tech in your pocket all day, it might as well contain some apps that make living healthy and living Primal easier, rather than harder. What follows are some of the best paleo/Primal apps I’ve found. Some I use, some I don’t. They’re not all explicitly “paleo,” but they’re all at least tangentially related to this thing we call the pursuit of optimal health and happiness.

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Dear Mark: Ketosis and HIIT, Keto After Menopause, Inuit and Ketosis?

For today’s edition of Dear Mark, I’m answering a few questions from you folks. First, can a person maintain their high intensity interval training while starting a ketogenic diet? Is there anything you should watch out for? Second, is keto a good option for postmenopausal women? Though we don’t have any direct research on the subject, there is hope. And then we discuss the peculiar case of the Inuit and the missing ketones.

Let’s go:

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10 Uncommon Exercises For Maintaining Strength, Agility, and Power With Age

The older you get, the more important strength, agility, power, and lean mass become. This isn’t how most people approach old age. They expect strength and all the other trappings of physical capacity to degenerate, and so they do. It’s what happens all around us, every day. Seniors are feeble, right?

The weight room is scary for a lot of people. Hell, even able-bodied youngsters in the prime of their lives shy away from lifting heavy things. So, first things first: Seniors should definitely strength train. If you’re unsure of your form and capabilities, find a trainer who works with older folks and ensure your safety. Just get out there.

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Can Endurance Training Ever Really Be Primal?

For over a dozen years, I’ve railed against what I call “chronic cardio”—the excessive, unrelenting endurance training I did for the better part of three decades. Most of my health issues cleared up when I stopped stopped running and training for marathons and triathlons, removed the refined grains and sugar I ate to support my endurance training, and began taking it easy. Explore the MDA archives and you’ll read all about the downsides of chronic endurance training, as well as my experiences in that world. Next to Primal living, most people probably know me best for being against “chronic cardio.” It’s kinda my thing.

As a result, a lot of people have this idea that any type of endurance training is verboten and totally antithetical to the Primal way of life.

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How Using Fat for Fuel Can Boost Athletic Performance

A few weeks back, I explored the potential benefits using fat as your primary fuel can have on cognitive function. While the strongest research centers on people dealing with age-related cognitive decline and other neurodegenerative diseases, and whether burning fat and ketones can boost cognitive function in healthy adults remains unconfirmed, the totality of the evidence suggests it can provide a benefit. Today, I’ll be discussing a related topic with more solid scientific footing: the effects of fat-adaptation on athletic performance.

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