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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WOW: Sprint, Walk, Sprint, Repeat

January 10 2011 - - Complete 15 minutes of: 6-second Sprint Walk 6-second Sprint Walk Repeat (more…)

Definitive Guide To Sprinting, Part 1: Benefits of Sprinting

June 12 2019 - As Primal enthusiasts know, sprinting is an essential element to leading an optimally fit life. After all, it’s one of the 10 Primal Blueprint Laws, and perhaps the quintessential anti-aging activit...

WOW: Sprint Complex

November 29 2010 - Complete 4 (or more) in succession: 2 10-second Standard Sprints 2 10-second Uphill Sprints 2 20-second Grok Crawl Sprints 2 12-second Backward Run Sprints 2 150-meter Rowing Sprints 2 50-mete...

Mark’s Beach Sprints

October 03 2007 - - Subscribe to Mark’s Daily Apple feeds

Primal Blueprint Forest Sprinting

January 08 2010 - This inspiring Primal Blueprint Fitness Video was sent in by reader Tom Greenwald. Let Tom know what you think in the comment board. The Fitness Video contest has ended, but there are still ways to...

Tips for Sprint Training

January 08 2008 - Though I don’t believe that the road to health is paved with incessant high endurance exercise, it doesn’t mean that I “can” cardio entirely either. Just as humans didn’t evolve to eat frost...

Sprint for Your Life: A Primal Workout

September 22 2009 - For the modern Grok, sprinting is generally an elective endeavor. His animals come pre-slaughtered, his honey comes bee-free, and the once-constant threats of predator or rival clan usually fail to ma...

Sprints and Push-Ups with Suicide Mark

August 27 2009 - This reader created video was submitted for a Primal Blueprint Contest. Click here to find out how you can participate and win Primal prizes! [dfads params='groups=674&limit=1&orderby=random&return_j...

Statins and Sprints: News Alert

February 03 2009 - You’ve probably noticed that we like to revisit subjects, no matter how exhaustive our prior analysis may have appeared. We do this for two reasons – to foster a running dialogue on a constantly e...

What Are Tabata Sprints?

January 15 2009 - As you probably already know, we're big on sprinting around here for a number of reasons. First of all, sprints most closely emulate the type of activity Grok would have performed. You know - slowly s...

Statins and Sprints: News Alert

February 03 2009 - You’ve probably noticed that we like to revisit subjects, no matter how exhaustive our prior analysis may have appeared. We do this for two reasons – to foster a running dialogue on a constantly e...

Dear Mark: Antibiotic Recovery, Sprinting on Keto, Preparing for Bad Sleep

April 02 2019 - For today's edition of Dear Mark, I'm answering three questions. First up, what can a person do to help their gut recover its barrier function after too many antibiotics? Are there any foods, suppleme...

Dear Mark: Metformin for Life Extension, Too Many MEDs, MED for Lifting Addict, and Horseback Riding

July 20 2015 - For today's edition of Dear Mark, I'm answering four questions. First, does the diabetes drug metformin have life-extending potential for non-diabetics? Then, the final three questions come from the c...

Dear Mark: Cold Weather Sprint Alternatives, Palm Olein, Podcast Questions, and Dark Circles

January 27 2014 - For today's edition of Dear Mark, we've got a four-parter. First, I discuss some alternatives to traditional outdoor sprinting for people in cold weather. Just because you can't go run 100 meter dashe...

Dear Mark: How Many Sprints Per Week, How to Play and Train with Babies, and the Best Nighttime Snack

February 08 2016 - For today's Dear Mark, I'm answering three questions. First, how often can a person sprint safely and effectively? There are many factors to consider when determining the amount of sprinting a person...

Dear Mark: Staying Aerobic, Glycogen Depletion, and Sleep-Low for Strength Training?

March 28 2016 - For today's edition of Dear Mark, I'm answering three reader questions. First, do anaerobic workouts—sprints, lifting, etc.—interfere with your ability to become a fat-burning, aerobic beast, or c...

Dear Mark: Fish Oil Study, 1500 Calories, Breaking a Plateau, and Bulletproof Coffee vs IF

April 20 2015 - For today's edition of Dear Mark, I'm answering four questions. First up is from Milad, who wonders about the recent research seeming to show that fish has little to no effect on heart disease. Is it...

Dear Mark: Bikram Yoga; Stored Toxins Impairing Fat Loss

June 13 2016 - For today's edition of Dear Mark, I'm answer two questions from readers. First, does Bikram yoga qualify as sprinting or high intensity training? It's certainly intense, and it'll make you sweat bulle...

Monday Musings: Thoughts on Fasted Training

December 20 2010 - Even if I'm not expressly fasting, I gravitate towards working out on an empty-ish stomach. It just feels right to me to run on empty or, at the most, a couple eggs or a handful of nuts. Lifting heavy...

Dear Mark: HIIT, Omega-3s and Cooking, and Gluten-Free Baked Goods

April 22 2013 - It's time, yet again, for another edition of Dear Mark. As per usual, I'm doing a roundup of reader questions. First, I cover high intensity interval training, also known as HIIT. It's the subject of ...

WOW: Sprint, Walk, Sprint, Repeat

January 10 2011 - - Complete 15 minutes of: 6-second Sprint Walk 6-second Sprint Walk Repeat (more…)

Definitive Guide To Sprinting, Part 1: Benefits of Sprinting

June 12 2019 - As Primal enthusiasts know, sprinting is an essential element to leading an optimally fit life. After all, it’s one of the 10 Primal Blueprint Laws, and perhaps the quintessential anti-aging activit...

WOW: Sprint Complex

November 29 2010 - Complete 4 (or more) in succession: 2 10-second Standard Sprints 2 10-second Uphill Sprints 2 20-second Grok Crawl Sprints 2 12-second Backward Run Sprints 2 150-meter Rowing Sprints 2 50-mete...

Mark’s Beach Sprints

October 03 2007 - - Subscribe to Mark’s Daily Apple feeds

Primal Blueprint Forest Sprinting

January 08 2010 - This inspiring Primal Blueprint Fitness Video was sent in by reader Tom Greenwald. Let Tom know what you think in the comment board. The Fitness Video contest has ended, but there are still ways to...

Tips for Sprint Training

January 08 2008 - Though I don’t believe that the road to health is paved with incessant high endurance exercise, it doesn’t mean that I “can” cardio entirely either. Just as humans didn’t evolve to eat frost...

Sprint for Your Life: A Primal Workout

September 22 2009 - For the modern Grok, sprinting is generally an elective endeavor. His animals come pre-slaughtered, his honey comes bee-free, and the once-constant threats of predator or rival clan usually fail to ma...

Statins and Sprints: News Alert

February 03 2009 - You’ve probably noticed that we like to revisit subjects, no matter how exhaustive our prior analysis may have appeared. We do this for two reasons – to foster a running dialogue on a constantly e...

What Are Tabata Sprints?

January 15 2009 - As you probably already know, we're big on sprinting around here for a number of reasons. First of all, sprints most closely emulate the type of activity Grok would have performed. You know - slowly s...

Definitive Guide To Sprinting, Part 2: Creating a Sprinting Workout (+Video)

June 12 2019 - Now that you've absorbed the rationale and benefits to add sprinting to your fitness program with Part One of the Definitive Guide To Sprinting, let’s get into the details of how to conduct a great ...

Unleash Your Inner Grok

May 13 2009 - Even though we, as Primal enthusiasts, do acknowledge his presence by eating his food, doing his exercises, and minimizing the kind of artificial stress he rarely experienced, something seems absent f...

8 Ways You Might Be Inadvertently Sabotaging Your Fitness Routine

November 07 2012 - Last week, I went over a few ways Primal Blueprinters experiencing a weight loss plateau (or fast approaching one) might be inadvertently sabotaging their own weight loss efforts. This week, I thought...

Diggin’ a Hole to Install a Ladder to Wash the Basement Windows

November 19 2009 - Picture a house with absolutely filthy exterior basement windows, the kind that just barely peek out above ground level. The owner can’t see through the things, and they need a thorough washing. He ...

10 Baby Steps to Help You “Get Primal”

August 07 2009 - For this month?s 30-day challenge, we realize that everyone is starting from a different place. As much as we learn from our hardcore Grokkers, we welcome Primal newcomers with open arms and eager ear...

Why Fast? Part Five – Exercise

April 12 2012 - In previous installments, I've discussed the powerful effect of fasting on weight loss, particularly with respect to adipose tissue. I've explained how intermittent bouts of going without food have be...

Where Do I Start? The Big Picture on Tackling Primal Challenges

February 01 2017 - Earlier this month, a reader posed a fantastic question that prompted today's post. It was long, so I'll give the choice bits rather than quote the entire thing: Where do I start? I’d be interested...

Dear Mark: Matcha Tea, Runner’s High, Stress and Weight Gain, and Fasting for Teens

November 14 2011 - Yesterday was the Malibu Marathon (and Half Marathon), and yeah, I snuck a peek. I could never do it myself, not ever again, but I always like to take a gander at the hordes of faithful. Tons of folks...

9 Factors That Influence Testosterone Levels

September 06 2017 - In the last several weeks testosterone has come up on a pretty regular basis. I've written about it before, of course, but there's something about the novel elements (e.g. solar irradiation for certa...

The Definitive Guide to Overcoming Procrastination

March 10 2015 - Several years ago, I briefly discussed a few methods for overcoming procrastination, but they didn't take. The sea change I expected never came. People still procrastinated as much as they ever did, d...

Primal Blueprint Forest Sprinting

January 08 2010 - This inspiring Primal Blueprint Fitness Video was sent in by reader Tom Greenwald. Let Tom know what you think in the comment board. The Fitness Video contest has ended, but there are still ways to...

Facing the Primal Blueprint Fitness Challenges

September 16 2010 - For this next introduction - or re-hashing, for some of you - of an essential Primal concept, I'll be covering the three basic Primal laws of fitness (click the image to zoom in). This one can be the ...

Dear Mark: Tweaking Sprints for a Stressful Life; Carrie’s Primal Transition

May 12 2014 - For today's edition of Dear Mark, I answer one question and Carrie answers another. First up is one from Diane, a (full-time) working mother who's noticed something interesting about her variable resp...

Dear Mark: How Many Sprints Per Week, How to Play and Train with Babies, and the Best Nighttime Snack

February 08 2016 - For today's Dear Mark, I'm answering three questions. First, how often can a person sprint safely and effectively? There are many factors to consider when determining the amount of sprinting a person...

Dear Mark: Acrylamide, Sprint Alternatives, Gynoid Fat, and Adult Bed Sharing

January 21 2013 - In this week's edition of Dear Mark, I'll be covering three wide-ranging topics. First is acrylamide, the french fry toxin, the coffee carcinogen, the rat destroyer. It appears in almost every starchy...

Dear Mark: How Are You Training These Days?

July 29 2013 - One of the most common questions I get from readers is the same one I get from people who have no idea who I am or what I do: "What's your workout, dude?" Because I write a blog that discusses the lat...

Fasted Workouts: When They’re More Effective (and How I Incorporate Them)

November 07 2018 - Fasted workouts are a controversial topic in the fitness world. To some, the idea of working out without "carbing up" or doing the pre-workout protein shake is unthinkable. Won't my performance suffer...

WOW: Quality Time

December 20 2010 - - Complete 4 cycles of: 100 Meter Leapfrog 100 Meter Foot Race Tug-of-War (losers do ten burpees) (more…)

The Final Workout of the Week (WOW)

August 22 2011 - - Complete for time: Read this post (more…)

Persistence Hunting in the Park

July 14 2010 - UPDATE: Wow! Quite the response to this post! I had a good chuckle at many of the comments at first, but things have spiraled out of control a bit. First, let's please keep things nice and civil in th...

Hazelnut Crusted Chicken with Stealth Coconut

October 02 2010 - The Primal chef responsible for this delicious recipe is the winner of the Primal Iron Chef Contest. With over 120 amazing coconut recipe submissions the competition was fierce. Honestly, just about a...

Early Spring Greens Soup

April 04 2009 - The environmentalists are always urging you to go green, and now we are too?at least when it comes to soup. Admittedly this is more of a side dish than a full dinner entree, but we couldn't pass on...

Eat This Today, Feel Better Tomorrow: Installment III

March 12 2008 - What can we say? We love good food, and we appreciate that you do too. The post has been popular, and we appreciate your comments and requests. As we mentioned last week, we’ve been working on in...

Fish Tartare: A Recipe from Good Fat, Bad Fat

May 21 2016 - In honor of Primal Blueprint Publishing’s newest release, Good Fat, Bad Fat by Romy Dollé, we thought we’d share another recipe from this healthy fat resource. If you missed the Rösti with Fried...

Sweet & Tart Rhubarb and Berry Dessert Sauce

April 21 2012 - Rhubarb is a mysterious vegetable, one that is loved by many despite its toxic leaves and puckering, tart flavor. It’s possibly one of the least versatile vegetables out there and resists most attem...

Lamb’s Lettuce and Spinach Salad

March 27 2010 - We can’t think of a better green to welcome in spring than one with an adorable name like Lamb’s Lettuce. Of course, this green has many identities and what you call it depends a lot on where you ...

Resistant Starch Potato Salad

August 08 2015 - This is a guest recipe from Caitlin Weeks, a holistic nutritionist, author and creator of the wellness hub Grassfedgirl.com. This recipe combines the benefits of resistant starch and the deliciou...

Salmon Foil Pack

April 21 2019 - Foil pack dinners offer the ease and convenience of single packs with zero clean-up: an attractive option for anyone looking to make the most of their evenings (while still putting a healthy meal on t...

Enjoy a Collagen Peptides Green Smoothie—And Win a Vitamix!

March 13 2018 - We're serving up an early midweek recipe that will have you thinking spring—or St. Patty's Day—along with a giveaway you won't want to miss.... Fresh basil gives this refreshingly tart and trop...

Stinging Nettle Pesto

March 10 2012 - When preparing a meal from stinging nettles, you can’t help but wonder who was brave (or crazy) enough to discover that this invasive, weed-like plant covered with stinging hairs was edible in the f...

From Overtraining to Success with Primal Blueprint Fitness

December 26 2014 - It’s Friday, everyone! And that means another Primal Blueprint Real Life Story from a Mark's Daily Apple reader. If you have your own success story and would like to share it with me and the Mark’...

Complete Turnaround After Only Two Months

May 16 2014 - It’s Friday, everyone! And that means another Primal Blueprint Real Life Story from a Mark's Daily Apple reader. If you have your own success story and would like to share it with me and the Mark’...

A Primal Woman Looks at 50+

September 23 2011 - It’s Friday, everyone! And that means another Primal Blueprint Real Life Story from a Mark's Daily Apple reader. If you have your own success story and would like to share it with me and the Mark’...

Primal Blueprint Success Story: More Like Grok

June 12 2009 - For anyone that is now familiar with The Primal Blueprint, you'll recognize both of the characters to the right. It's our lovable Primal role model, Grok, and his modern antithesis - your average over...

Boy Meets Sisson, Overcomes “Reverse Dysmorphia”

July 04 2014 - It’s Friday, everyone! And that means another Primal Blueprint Real Life Story from a Mark's Daily Apple reader. If you have your own success story and would like to share it with me and the Mark’...

Primal Blueprint Success Story

March 18 2008 - I got this message from a reader who has been following our site for some time and decided to incorporate my Primal Blueprint ® lifestyle tactics into his life. Photos, results and advice follow... ...

I’ve Never Felt Better in My Life!

November 11 2016 - It’s Friday, everyone! And that means another Primal Blueprint Real Life Story from a Mark's Daily Apple reader. If you have your own success story and would like to share it with me and the Mark’...

Life Is Full of Adventure and Possibility

December 10 2018 - It's Monday, everyone! And that means another Primal Blueprint Real Life Story from a Mark's Daily Apple reader. If you have your own success story and would like to share it with me and the Mark's Da...

Can You Be an Endurance Athlete and Primal?

February 24 2010 - By now you know I have a biased point of view that rigorous endurance training is antithetical to health. Yes, I competed and loved it for 20 years, so I get the appeal it has for so many, but these d...

Dear Mark: Acrylamide, Sprint Alternatives, Gynoid Fat, and Adult Bed Sharing

January 21 2013 - In this week's edition of Dear Mark, I'll be covering three wide-ranging topics. First is acrylamide, the french fry toxin, the coffee carcinogen, the rat destroyer. It appears in almost every starchy...

Dear Mark: Fish Oil Study, 1500 Calories, Breaking a Plateau, and Bulletproof Coffee vs IF

April 20 2015 - For today's edition of Dear Mark, I'm answering four questions. First up is from Milad, who wonders about the recent research seeming to show that fish has little to no effect on heart disease. Is it...

Dear Mark: Bikram Yoga; Stored Toxins Impairing Fat Loss

June 13 2016 - For today's edition of Dear Mark, I'm answer two questions from readers. First, does Bikram yoga qualify as sprinting or high intensity training? It's certainly intense, and it'll make you sweat bulle...

Monday Musings: Thoughts on Fasted Training

December 20 2010 - Even if I'm not expressly fasting, I gravitate towards working out on an empty-ish stomach. It just feels right to me to run on empty or, at the most, a couple eggs or a handful of nuts. Lifting heavy...

Dear Mark: Burning Off Holiday Sugar, Long Bike Commute, and Low Calorie Diets for Teens

December 29 2014 - For today's edition of Dear Mark, we're answering three questions. First up, how can you mitigate and overcome an acute holiday sugar binge? What are the best exercises for getting rid of all that sug...

Dear Mark: A New Whole Grain Study, Advice for a Teen, Broken Leg Sprints, and The 3 Mules

March 30 2015 - For today's edition of Dear Mark, we've got four questions and four answers. First up, there's a new whole grain study, and some people are claiming it demonstrates that low-carb diets will lead to ea...

10 Ways to “Get Primal”

April 29 2008 - Here at Mark’s Daily Apple, we advocate the Primal Blueprint Lifestyle, that is, a health philosophy that in large part acts to mimic the diet and physical activity of our pre-agricultural ancestors...

Dear Mark: Cycling at Work, Refueling After Sprints, Fasting for Caloric Deficit, and PUFAs for Pain

March 25 2013 - For today's edition of Dear Mark, I'm tackling four questions. First, I discuss the negative effects of sitting and explore whether stationary cycling as you work can mitigate the bad stuff associated...

Dear Mark: Why Hyperglycemia Is Bad and Those Stubborn Final Pounds

April 21 2014 - Today we've got a fairly short one with just two questions and answers. First, I tackle a big topic: the specific effects of hyperglycemia on the body. That hyperglycemia is bad for us is implicit, bu...

Dear Mark: Weight Loss and Workout Routine

December 01 2008 - - For this week's Dear Mark I thought I'd publish a couple email correspondences I've had with MDA readers lately. Hit me up with your questions and comments in the comment board. (more…)

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