A Foghorn Fitness / Slowfit Method® dispatch
Oops, I did it again. I went and disappeared for two more years from this here blog. Again. I promise not to do that again. My apologies. The original intent of The Lemonade Chronicles was as a sort of real-time journal of a reluctant stay-at-home dad as he approaches mid-life. Most of the “action” (if you can call it that) transpired more than 10 years ago. Everything leading up to my mid 40s, and something of an existential struggle.
Ten-plus years on, and things are waaaaaaay different.
My kids are in their 20s and miraculously, my wife and I seem to have done a reasonably good job with the boys, Max and Everett. I suppose that parenting never really ends, but the degree to which we exert control over their lives lessens every day. And I’m cool with that. Hilary is still the rock of our family, steadfast as always. We’ve had some losses, as is the case with life. Hilary’s parents. Aunts and uncles on both sides of the family. We lost our beloved Lab Wailea a couple years back. And time is taking its toll on people around us about whom we really care.
As for me? My own evolution, as a human being chasing the elusive bright side, has continued. Picked up pace, even, in the last 6 or 7 years. Ten years or so ago, I had a lot of questions. What is the meaning of life? How do I take care of myself and the people (and animals) that I love? Am I doing it right? These questions served as the impetus for creating another (and presumably my last) little company.
This is the human performance company called Foghorn Fitness.
As I think about it, this is the culmination of my life’s work. Everything I’ve learned to this point. And really, somehow I think I’ve managed to build a pretty robust vehicle to help guide folks (and myself) to a happier and healthier life. There’s even an app for it!
I’ve been writing a ton, just not on this platform. Everything is now over at Substack. That’s now the place to go for the good stuff, though I suspect I’ll continue spinning yarns here, as well. If you’ve followed me years ago, agitating about Alien Heads, dogs who eat money, and missing the school bus, I think you’ll find this latest chapter of mine of interest. I hope you will. When last we were acquainted, I had so many questions about life. Maybe you did too. Now I think I have the answers. Well, at least some of them. I hope you’ll join me and come along for the ride.
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To that end, I’m going to jump right into it. Maybe a more apt image would be walk right into it. Because this post is about walking. Walking? Yep. Walking. Bear with me….
Because this is a thing you already know how to do — have known since you were about a year old — that is one of the most evidence-backed longevity interventions available to you, costs absolutely nothing, requires no equipment, no gym membership, no coach, and can be done anywhere on earth.
You are almost certainly not doing enough of it.
Walking. That’s it. That’s the whole revelation.
I know. Anticlimactic. But stay with me, because the research is genuinely surprising, and the running boom — I say this as someone who runs — has done a lot of damage to walking’s reputation that it doesn’t deserve.
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WALKING IS THE SIXTH VITAL SIGN
Dr. Courtney Conley and Dr. Milica McDowell just published Walk: Rediscover the Most Natural Way to Boost Your Health and Longevity — One Step at a Time, and it is the book I’ve been waiting for on this topic. What James Nestor did for breathing, what Kelly and Juliet Starrett did for mobility, Conley and McDowell do for walking. Their central argument: walking is as important to your health and longevity as sleep and proper breathing. It is the sixth vital sign. And yet we’ve almost engineered it out of our lives.
The details are striking. Your walking speed can predict your overall health status and risk of early death. Your risk of falls and longevity can be measured by your foot health. And the number of daily optimal steps is not 10,000, it’s fewer. That last one will rearrange some people’s mental models. And hopefully rearrange people’s shoe closets. Enough with the foot coffins, folks.
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BORN TO WALK—AND LIFT, SPRINT & PLAY
Mark Sisson’s Born to Walk makes the case most forcefully, and it’s worth spending a moment here because his full prescription maps almost exactly onto the Slowfit Method®.
Sisson’s argument isn’t just that running is overrated. It’s that we’ve misunderstood the entire architecture of human physical activity. He describes a movement pyramid built around four layers:
Low-level aerobic movement — walking — as the foundation. This is your Zone 2 base. Sustained, conversational-pace movement that builds mitochondrial density, improves insulin sensitivity, and develops your aerobic engine without the joint stress of running. Walking is Zone 2 for most people. The running boom convinced an entire generation that anything less than hard cardio didn’t count. That was wrong. Instead, most of us are running ourselves into the ground.
Strength training as the second layer. Not optional. Sisson is explicit: lifting heavy things is what signals the body to maintain muscle mass, protect bone density, and keep hormones functioning as you age. Same argument Attia, Luks, and Topol all make in the longevity books I covered last month. Muscle is the organ of longevity.
Sprinting and high-intensity work as the third layer, but sparingly. Short, hard efforts a couple of times a week. Not chronic cardio. Brief, intense, and followed by full recovery. This is what Foghorn’s HIIT sessions are built around.
Play as the fourth layer. Sisson is serious about this one. Unstructured physical activity, sports, martial arts, open water swimming, anything that involves moving your body in ways that aren’t predetermined by a machine or a program. In the Slowfit framework this is the spirit behind karate, pickle ball, whatever gets you moving in ways your body wasn’t expecting.
The Slowfit Method® has been built around exactly this hierarchy since day one: low-and-slow aerobic base, progressive strength work, occasional high-intensity effort, and enough variety to keep the body adapting and the mind engaged. Sisson just gave it a name.
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THE LONGEVITY CONNECTION
Last month I wrote about three longevity books, Attia, Topol, Luks. All three converge on the same point. Eric Topol’s seven-year Wellderly Study, the people who reached their late 80s without major chronic disease, found no genetic smoking gun. What separated them was lifestyle: they were physically active. They walked. Howard Luks makes it plainly in Longevity…Simplified: walking counts. Not as a consolation prize for people who can’t run. As a legitimate, evidence-supported health intervention.
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THE BODY IMAGE RESEARCH NOBODY IS TALKING ABOUT
And here is the piece that’ll encourage us to touch grass. Outside Online published new research by Dr. Viren Swami, a psychology researcher who has spent years studying nature exposure and body image. In the largest survey on this topic, researchers analyzed self-reported habits of more than 50,000 people aged 18 to 99 from 58 countries. Despite vast differences in age, location, and gender, connecting with nature was linked to positive body image.
But the experimental work is the part worth sitting with. A short 30-minute walk in nature promotes improvements in positive body image in the immediate term. And here is the detail that really landed: when participants took a walk in a built, urban environment, high-rise housing blocks, offices, shops, and parking lots, the walk actually caused a slight decline in body satisfaction. Walking in a natural environment increased it.
Same duration. Same physical effort. Different environment. Opposite psychological outcome.
Swami frames it this way: positive body image is when we begin to think of the body not in terms of what it looks like, but in terms of how it functions, how it helps us navigate from place to place, and all the wonderful things it does for us in everyday life. Nature creates the conditions for that shift. The urban environment, shop windows, advertisements, the constant social comparison of city life, works against it. Sounds kinda like the social media comparison-o-rama, no?
This maps directly onto Conley and McDowell’s framing of walking as biological necessity rather than exercise. When you’re moving through a natural environment, you are not performing for anyone. You are a body doing what bodies were built to do.
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ADD WEIGHT. SERIOUS THINGS HAPPEN.
Michael Easter’s Walk with Weight: The Definitive Guide to Rucking takes this one step further. Rucking, walking with a weighted pack, is one of the oldest forms of human physical training, refined over centuries of military conditioning. It loads the posterior chain, builds functional strength, and elevates the metabolic demand enough to produce real fitness adaptation while remaining low-impact.
Start with 20-30 pounds and go 2-3 miles. Build from there. I program rucking regularly for clients whose bodies are telling them to back off the high-impact work. Nobody has ever come back disappointed. If you’re going to read one book to get started, Walk with Weight is it. And GORUCK is my go-to when it comes to rucksacks (discount code in that link).
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THE SLOWFIT METHOD® TAKE
Walking is the Movement pillar at its most accessible. But as Sisson makes clear, and as we practice at Foghorn every week, walking is only the foundation. The full pyramid is what produces lasting fitness: walk as your base, lift to preserve muscle and bone, sprint occasionally to keep your cardiovascular ceiling high, and play to keep your body adaptable and your brain engaged.
That’s not a novel prescription. It’s what humans did for most of our evolutionary history. We just stopped doing it when gyms started selling us the idea that one type of hard cardio was enough.
A few things from Walk worth implementing immediately: your walking speed matters, so don’t shuffle. Your foot health matters, so ditch the cushioned stability shoes and let your feet actually feel the ground. And the 10,000 steps target is more marketing than medicine, quality of movement beats raw step count.
One more thing: if you want to go deeper on any of this, the walking research, Zone 2, rucking, the Slowfit Movement pillar, Coach Keir AI knows the full methodology. The Slowfit Method® app is now live on the App Store, free to download with a 10-message trial. Ask it anything. It won’t shuffle. Want to learn more? Wrote about the new app here and here. I’m proud of it; sure hope you’ll check it out.
Your action today: go for a walk that is at least 30 minutes, outside, somewhere that isn’t a parking lot. Leave the earbuds out for the first ten minutes. Notice what happens to how you feel about yourself.
That’s the whole protocol.
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See you out there somewhere!
-Keir
P.S. Speaking of walking, did a fair amount of that up the infamous Baker Beach Sand Ladder this past weekend during the 2026 Escape from Alcatraz Triathlon. Congrats, too, to Foghorn athlete (and eldest son) Max Beadling on his first triathlon (and on absolutely smoking his dad).
P.P.S. New website, new merch! Please have a look at the latest & greatest Foghorn website and if you’re interested in a new Foghorn hat (blue on black logo pictured above), let me know!
The Lemonade Chronicles 