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: Fitness

Dear Mark: Potato Diet, Lean Gains, EVOO/Butter/Ghee, Exogenous Ketones, and Early IFing

For today’s edition of Dear Mark, I’m answering several questions drawn from the comment board of last week’s post on fasting vs carb restriction. First, how do I square my recommendations with the successful reports of potato dieters losing weight on a high-carb tuber diet? Second, is Leangains optimal for mass gain? Third, how do I use extra virgin olive oil, butter, and ghee? Fourth, could exogenous ketones help a man with dementia, MS, and seizures? Fifth, how should a woman with stalled weight loss integrate fasting?

Let’s go:

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Are You Ready? 8 Tools and Tips For Your Challenge Prep

How many of you will be joining us for the Challenge next week—and how many for the first time? (I’d love to see a show of hands in the comment section.)

The cool thing about the Challenge each year is this: everybody comes at it from a different place. Some folks are hundred pounds overweight and haven’t exercised in years. Some are at the top of their Primal game but love the community engagement and chance to encourage others. Most are at every stage in between.

Behind every participant across that spectrum is a fascinating story. Your story. The one in which you haven’t quite had the life you’d hoped lately—and the one in which you claim it back.

Today I’ve got some ideas and resources for you to consider. If you’re on the fence about joining us, maybe these can get you over the hump and get you committed. I sure would like to see you with us.

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11 (Non-Dietary) Actions That Enhance Insulin Sensitivity

Insulin does a lot of important things for us. It pulls glucose from the blood and fritters it away into our cells to be burned for energy or stored as glycogen. It prevents hyperglycemic toxicity to neurons, pancreatic cells, the arterial walls and the generation of excessive levels of reactive oxygen species. It even promotes muscle protein synthesis and helps augment muscular hypertrophy, especially following resistance training. Clearly, we need insulin. Without it, we’d die, as type 1 diabetics readily do without an exogenous source.

But this process goes off the rails when our cells become resistant to the effect of insulin over time. We secrete too much. Our levels remain elevated. It becomes harder to burn body fat. In fact, we end up in even more efficient fat storage mode.

I’ve shared about nutritional means to enhance insulin sensitivity in the past. What about other non-dietary strategies?

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Dear Mark: Fitness (and Keto) Benefits of Baking Soda

For this week’s edition of Dear Mark, I’m answering a couple questions from the comment section of last week’s Weekend Link Love. First, what’s the effective dose of baking soda used in the autoimmune study? And is it safe for general use in doses of 1 tsp a day? In addition to the dose, I also discuss the many benefits of baking soda shown in the literature. Second, do sodium biocarbonate containing mineral waters offer the same benefits?

Let’s find out:

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Dear Mark: Power Yoga, Pelvic Floor, Keto Reset and Osteoporosis

For today’s edition of Dear Mark, I’m answering three questions. First, is power yoga—a more “intense” version of yoga that includes strength exercises—a suitable alternative to strength training for aging women? Probably not, but that doesn’t make it bad or wrong to do. Second, what’s the deal with pelvic floor dysfunction after menopause? What’s the best way to improve that situation? And third, is the Keto Reset right for older women with osteoporosis?

Let’s find out:

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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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