Why Dwayne Johnson’s Weight Loss May Go Beyond a Film Role

Why Dwayne Johnson’s Weight Loss May Go Beyond a Film Role

 

Why Dwayne Johnson’s Weight Loss May Go Beyond a Film Role

Unless your Wi-Fi stopped working, you’ve probably seen the photos.

For years, Dwayne “The Rock” Johnson has been famous for his massive action-hero build. Recently, however, the actor appears noticeably slimmer, leading many fans online to say he now looks more like “The Pebble.”

Johnson addressed the speculation during an appearance at a film festival, explaining that his leaner look is related to preparation for an upcoming movie role.

At first glance, that explanation seems reasonable. After all, he’s an actor, and physical transformations are often part of the job.

But some fitness experts believe there may be more to the story. From a bodybuilding perspective, dramatic body changes at that level often involve many factors—strict training programs, precise nutrition strategies, and carefully managed conditioning phases.

While the movie role may indeed be a major reason for the transformation, it also highlights a broader reality of the entertainment industry: maintaining or changing a physique for the camera can require intense dedication and highly specialized fitness approaches.

For fans and fitness enthusiasts alike, The Rock’s latest transformation is another reminder that the bodies we see in Hollywood often reflect months of disciplined work behind the scenes.

 

The Rock And His “Natty” Status

In a 2009 interview, The Rock admitted to trying anabolic steroids when he was 18 or 19. But ever since then, he has maintained that his physique is “all natural.”

Nothing more than hard work and clean eating. Right.

As someone who’s made a living in the fitness industry, I’ll say this plainly. I’m 99.99% certain that The Rock has been a long-time user of performance-enhancing drugs (PEDs).

Not just a few experimental cycles when he was a teenager. I’m talking about years of nearly continuous steroid use to maintain superhuman levels of muscle mass and definition.

I base this subjectively on nearly two decades of being around professional bodybuilders on gear. But also, The Rock has a fat-free mass (FFMI) score of 27.1, which is well above the proposed natural limit of 25. Highly indicative of steroid use.

That’s not meant as a personal attack. It’s simply facing reality. At over 50 years old, maintaining the level of muscle mass and conditioning The Rock has displayed is virtually impossible without pharmacological support.

Even men with elite genetics, the best nutrition, and perfect training don’t hold that much size and density naturally past their 40s, let alone well into their 50s.

He’s either on steroids, or he has some one-in-a-billion genetic mutation and should donate his body to science for the good of all mankind.


Photo by Hennie Stander on Unsplash

So why hasn’t he admitted it? For the same reasons no athlete or actor in the public eye ever does.

  • In the US, anabolic steroids are classified as controlled substances, so admitting use carries legal risks.
  • On top of that, there’s the stigma. PED use is viewed by many as “cheating”. An athlete’s, and even an actor’s, accomplishments are diminished if they admit to steroid use.
  • From a personal branding standpoint, it’s better (and more profitable) to push the idea that success comes from diet and discipline alone.

And that brings us back to The Rock’s recent transformation. He says the extreme weight loss is simply for an upcoming film role. That is partially true. But that explanation doesn’t look at the bigger picture.

 

Why The Rock Is Slimming Down Now

In my opinion, The Rock’s dramatic size reduction looks less like a temporary diet and more like a strategic personal shift.

What we’re really seeing is a deliberate transition from decades of heavy PED use toward a more sustainable, age-appropriate approach. One that prioritizes health, longevity, and career versatility.

 

Health comes first.

Steroids and other PEDs come with serious side effects, including a marked increase in cardiovascular issues. That's why heart complications tragically cut short the lives of so many pro wrestlers and bodybuilders.

At 53 years old, Johnson has likely reached the point where continuing to run high doses would present significantly more risk than reward. Transitioning down to testosterone replacement therapy (TRT) would allow him to maintain optimal physiological hormone levels without the same strain on his heart.


Screenshot from my Oura Ring app. I track my cardiovascular age to ensure my workouts improve my health and not just my appearance.

 

Longevity matters.

Unlike the peak of his wrestling days, The Rock isn’t trying to push his body to extremes anymore. He has a family, businesses, and a film career to protect.

Slimming down now is a way of investing in his future, making sure he can stay active and productive for decades to come.

 

His career is evolving.

For years, The Rock has been billed as the oversized action star. A larger-than-life figure who commands the screen with sheer mass.

But at this stage, getting smaller actually opens new doors. With a closer to “normal” frame, he can play roles that he couldn’t at 260 pounds.

So yes, the weight loss is tied to his next film. But in my view, it’s also an intentional health decision that positions him for long-term success both on screen and off.

 

We’ve Seen This Before

If The Rock’s weight loss looks familiar, that’s because we’ve seen a nearly identical story play out before.

Just two years ago, another former wrestler turned gigantic Hollywood star, Dave Bautista, dropped a reported 75 pounds. Publicly, he explained the change as a combination of cleaner eating, more cardio, and a desire to play more versatile roles.

The media bought it because it was believable. But from a bodybuilder’s perspective, Bautista’s transformation wasn’t a “weight loss journey”. It was an obvious reduction in exogenous hormones.


Image created by author showing Dave Bautista before and after his reported 75-pound weight loss.

At the time, Bautista was also in his 50s. So the more likely explanation was that he transitioned from full bodybuilding-style steroid cycles down to TRT-level maintenance. The broader range of acting opportunities was just an added benefit of slimming down.

Fast forward two years, and Bautista has maintained his smaller stature. To me, that reinforces the idea that the muscle loss wasn’t for a role. It was a side effect of getting off the juice.

The parallels to The Rock are uncanny. Two former wrestlers, both in their 50s, both slimming down dramatically, both citing film opportunities as the public reason.

And in both cases, the underlying driver appears to be the same — cycling off steroids at an age where health risks outweigh the benefits of a muscle-bound physique.

 

Debunking the Misguided Ozempic Myths

Whenever a celebrity loses a significant amount of weight, the internet rushes to fill in the blanks. In 2025, the default explanation seems to be “Ozempic.”

Press enter or click to view image in full size
Photo by David Trinks on Unsplash


That narrative quickly attached itself to The Rock’s rapid weight loss. Headlines speculated about him secretly using GLP-1 drugs like Ozempic or Mounjaro. These medications are a trending weight loss topic around the world, and several celebrities have admitted to using them. Plus, Ozempic is associated with muscle loss in addition to fat loss.

But let’s take a step back. Do we really believe that The Rock— a lifelong athlete, with decades of experience in nutrition and training, and access to the best coaches and doctors — needs Ozempic to lose weight? Of course not. He already knows how to cut weight effectively through diet and exercise.

However, this transformation isn’t just weight loss. The Rock already had visible abs most of the time. This is a deliberate effort to shed muscle mass.

Therefore, the more likely explanation is that he hopped off the gear. When you stop running supraphysiological doses of steroids and growth hormones, your body sheds size and muscle mass dramatically. That’s what we’re seeing here.

The media latches onto Ozempic because it’s a hot-button drug right now. But in reality, this isn’t about starting a new weight loss drug. It’s about stopping an old muscle gain drug.

 

Why It Matters

For some of you, this may seem like petty celebrity gossip. Does it really matter that The Rock lost weight or how/why he did it?

Normally, it wouldn’t. But in this case, it matters because the truth about performance-enhancing drugs is hidden.

It’s false advertising.

The “fake natty” influencers of the internet age deliberately deceive the public by lying about their drug use and telling half-truths about how they attained their physiques.

They use their bodies as a billboard that says:

  • “Buy my workout program, and you can be as strong as I am.”
  • “Buy my clothing line so people will know you work as hard as I do.”
  • “Buy my supplements, and you can look jacked like me.”

It’s false advertising, and they know it.

The Rock, in particular, boasts a vast portfolio of brands and partnerships, including a clothing line, energy drinks, men’s grooming products, and even a tequila.


Photo by Anastase Maragos on Unsplash. This gym-goer is sporting a hat and shirt from Under Armour’s Project Rock.

It sets unrealistic expectations.

Enhanced actors, athletes, and fitness personalities intentionally lead fans to believe their physique is attainable through hard work, chicken and broccoli, and whey protein supplements.

When those people fall short, they blame themselves for not having the willpower or discipline, when in reality, they were chasing a lie.
Some give up on their fitness aspirations. Others come to realize that their idol must be taking steroids and covering it up.

 

It fuels dangerous shortcuts.

Many young men, frustrated by their lack of progress, experiment with PEDs themselves. They think, “I can be like him if I just take steroids.”

Usually, it’s without proper knowledge, medical supervision, or awareness of the long-term risks. In which case, they get the side effects and body image issues without the desired results.

Because the truth is, the top athletes and stars didn’t get where they are by steroids alone. It takes a combination of great genetics, dialed-in diet and training, and experts to help them navigate the complexities of hormones and anabolics.

It ignores the bigger cultural problem.

Steroids are ingrained in fitness, sports, and even the entertainment business. But by sweeping them under the rug, these industries keep people misinformed. It prevents a more constructive conversation about what’s really going on behind the scenes.

For me, this isn’t about exposing anyone. What someone chooses to do with, or put in, their body is their choice. I don’t even blame The Rock for not coming clean — it could be career suicide due to public perception alone.

What I object to is the culture of dishonesty surrounding PED use.

If we can’t be honest about what it really takes to create these physiques, then the public never has a fair shot at understanding what’s possible naturally, what isn’t, and what the risks really are.

 

Final Thoughts

To be clear, what I’ve shared here is educated speculation. I haven’t seen The Rock’s bloodwork, his prescriptions, or the inside of his medicine cabinet.

What I do have is decades of experience in weightlifting, bodybuilding, and coaching. From that vantage point, the signs point to scaling back steroids and intentional muscle loss, not purely weight loss due to calorie restriction.

It remains to be seen whether Johnson will keep this smaller body for the long term or attempt to build back toward his former size. The latter would be a steep hill to climb at his age, and the risks of chasing that kind of mass only grow with time.


Photo by Erik Mclean on Unsplash

What I hope you take away from this is that steroids and PEDs are not rare outliers in bodybuilding, wrestling, or Hollywood. They’re common. And when the truth is hidden, the public is left idolizing illusions, falling for false advertising, or turning to shortcuts without understanding the risks.

If The Rock has indeed decided to move away from years of heavy PED use, I applaud that. It’s a smart and healthy choice that could extend not only his career but his life.And he will still be in better shape than 99% of people because he has the genetics, dedication, and know-how to do so.

What I want to shed light on is the ongoing delusion—our society’s willingness to ignore the 800-pound roided-out gorilla in the room.

Until we’re honest about performance-enhancing drugs, people will continue to struggle with diet, exercise, and body image issues. More importantly, the real conversation about physical and mental health never gets started.

 

10 Simple Natural Hair Growth Tips for Healthier and Thicker Hair

10 Simple Natural Hair Growth Tips for Healthier and Thicker Hair

 

10 Simple Natural Hair Growth Tips for Healthier and Thicker Hair

Every autumn, I start to notice subtle changes in my hair that once made me feel frustrated. It becomes a bit drier, slightly thinner, and I seem to shed more strands than usual. For a long time, I believed this was simply part of the seasonal cycle — that brittle strands and extra hair in my brush were something I had to accept.

 

However, after years of experimenting and learning what works for my hair, I discovered that it doesn’t have to be that way. With proper care and a consistent routine, hair can stay strong, shiny, and healthy throughout the year.

 

My journey didn’t happen overnight. I still remember the first time I mixed a simple homemade hair mask in my kitchen using honey and coconut oil, hoping it might help a little. Surprisingly, after a few uses, I noticed small improvements. My hair felt softer, less fragile, and more hydrated. That small experiment encouraged me to explore more natural hair growth tips that focus on nourishing hair rather than relying on quick fixes.

 

Now that I’m in my 30s, maintaining healthy hair has become part of my daily self-care routine. From gentle scalp massages before bed to choosing vitamins and supplements that support hair health from the inside, these habits have made a noticeable difference. Over time, my hair has become stronger, shinier, and I experience far less shedding than before.

 

That’s why I’m excited to share some of my favorite natural hair growth tips with you today. These are routines and products that I personally enjoy and regularly use. From easy DIY hair masks you can prepare in your own kitchen to essential vitamins and supplements that help nourish your hair, these ideas are designed to fit naturally into everyday life.

 

My hope is that by sharing these simple yet effective tips, you’ll feel inspired to take small, consistent steps toward achieving healthier, stronger, and more vibrant hair. 

 

1.DIY Hair Masks That Actually Work: Natural Hair Growth Tips

 One of the most affordable and effective natural hair growth tips I’ve tried is making my own hair masks at home. Every fall, when my hair feels drier and more fragile, I turn to simple ingredients I already have in the kitchen. A mix of egg, honey, and coconut oil has been my go-to — the protein from the egg strengthens, honey locks in moisture, and coconut oil nourishes the scalp.

Another mask I love is aloe vera gel mixed with a few drops of rosemary essential oil. Aloe soothes my scalp (especially when it feels itchy or irritated), while rosemary is known for stimulating blood circulation, which can promote hair growth. I usually leave these masks on for 30–40 minutes before rinsing with lukewarm water.

 

2. Scalp Care & Massage

In my 30s, I realized that healthy hair starts with a healthy scalp. One of the simplest natural hair growth tips is to give yourself regular scalp massages. It not only feels relaxing, but it also boosts blood flow to the hair follicles. I like to warm up a little castor oil or jojoba oil, apply it gently to my scalp, and massage in circular motions for about 5 minutes before bed.

Sometimes I use a scalp massager tool because it makes the process easier and more consistent. Doing this two or three times a week has made a huge difference in reducing hair fall and encouraging new growth.


Scalp Massager Tool

3. Nutrition & Vitamins for Stronger Hair

One of the most powerful natural hair growth tips I’ve learned is that healthy hair truly starts from within. No matter how many oils or masks you use, if your body isn’t getting the right nutrients, your hair won’t grow as strong or as fast as it could.

In my 30s, I noticed my hair felt thinner and less shiny during the fall months when seasonal shedding hit hardest. That’s when I started paying more attention to what I was eating. Protein-rich foods like eggs, salmon, and beans became staples because hair is made of keratin — a protein that needs fuel to stay strong. Leafy greens like spinach and kale also support hair health thanks to their iron and vitamin A content.

But diet alone isn’t always enough. I’ve found that adding targeted supplements can make a huge difference in how my hair feels and grows. Biotin is one of the most popular, but collagen and omega-3 fatty acids are equally powerful for nourishing hair from the inside out. Consistency is key — taking them daily helped me notice less breakage and more new growth over time. Among all the natural hair growth tips, focusing on nutrition and vitamins has been the foundation that keeps my hair stronger every season.

 

4. Protective Hairstyles & Heat Care

Another important lesson I’ve learned on this journey is that prevention is just as important as treatment. One of the natural hair growth tips I swear by is protecting my hair from unnecessary damage — especially from heat styling and tight hairstyles.

In the past, I used to straighten or curl my hair almost every day, and while it looked nice in the moment, the long-term damage was undeniable. Now, I’ve cut back on heat styling and focus on protective styles that keep my hair healthy. Loose braids, buns, or simply leaving my hair down in its natural state reduce breakage and give my strands time to recover.

When I do use heat, I never skip a heat protectant spray. It makes a big difference in preventing split ends and dryness. I also avoid tight ponytails or hairstyles that pull on the scalp, because they can weaken hair follicles and even cause thinning over time.

For me, it’s about balance — enjoying styling but making choices that don’t sabotage my hair’s health. By being gentler with my strands, I’ve noticed much less breakage and a lot more strength and shine. Out of all the natural hair growth tips, this one has been a game-changer because it focuses on protecting the hair I already have while supporting future growth.


scrunchies silk

5. Sleep & Nighttime Hair Care Habits

One of the most overlooked but powerful natural hair growth tips is how you treat your hair while you sleep. I used to go to bed with my hair loose, only to wake up with tangles, frizz, and breakage. Once I started being more intentional with my nighttime routine, I noticed my hair looked healthier and stronger.

Now, I always tie my hair loosely in a braid or bun before bed to minimize tangling. I’ve also switched to a silk or satin pillowcase — it reduces friction, which means less breakage and smoother hair in the morning. This small change alone has made a huge difference in keeping my strands strong and shiny.

Another one of my favorite natural hair growth tips at night is applying a few drops of nourishing oil, like argan or almond oil, to the ends of my hair before sleep. It locks in moisture overnight and prevents dryness, especially in the colder months when my hair needs extra love.

Protecting your hair at night doesn’t require much effort, but the results speak for themselves. By turning bedtime into a small self-care ritual, you’re giving your hair the chance to recover and grow while you rest — one of the simplest yet most effective natural hair growth tips to add to your routine.

Woman wearing a pink satin bonnet.

6. Vitamins & Supplements for Stronger Hair

Another one of the most effective natural hair growth tips I’ve discovered is supporting my hair from the inside with the right vitamins. By the time I hit my 30s, I realized that diet alone sometimes wasn’t enough to give my hair everything it needed. Adding targeted supplements made a real difference in strength, shine, and thickness.

Biotin is often the go-to for hair, and for good reason — it helps with keratin production, which is the protein our hair is made of. But biotin alone isn’t the whole story. I’ve found that combining it with collagen supplements keeps my hair not only growing but also looking full and resilient. Collagen supports elasticity, making strands less prone to breakage.

Other key nutrients I include are vitamin D (for overall follicle health), zinc (to reduce shedding), and omega-3 fatty acids (to nourish the scalp and fight dryness). When I’m consistent with these, my hair feels noticeably healthier and grows at a steadier pace.

For me, this has been a game changer. It’s not about quick fixes but about giving your body the building blocks it needs for long-term results. Pairing good nutrition with smart supplementation is one of the natural hair growth tips that has truly stood the test of time.


7. Hairstyles & Regular Trims

One of the most underrated natural hair growth tips is simply being mindful of the hairstyles we choose every day. In my 20s, I often wore my hair in tight ponytails or buns without realizing how much tension that constant pulling created. Over time, I noticed breakage around my hairline and thinner strands. Now, in my 30s, I’ve learned that looser, protective styles not only feel more comfortable but also prevent unnecessary damage.

Protective hairstyles like loose braids, low buns, or even just wearing my hair down more often give my strands the freedom to stay strong. I also make it a habit to use silk scrunchies instead of regular elastic bands — they’re gentler on the hair and reduce breakage. Sleeping on a silk pillowcase has been another small change that’s made a big difference.

And then there’s trimming. For years, I avoided it because I thought cutting my hair would make it “shorter.” But I’ve since realized that regular trims are one of the smartest natural hair growth tips. By cutting off split ends before they travel up the shaft, I’m actually protecting the length I’ve worked so hard to grow. Now, a quick trim every 8–10 weeks keeps my ends fresh and my hair looking healthy.

 

8. Hydration from the Inside Out

It took me years to understand that hair care isn’t just about what you put on your strands — it’s also about how you care for your body. Drinking enough water daily is one of the easiest natural hair growth tips, yet it’s often overlooked. Dehydration can make hair brittle, weak, and more prone to breakage.

To keep myself on track, I carry a reusable water bottle and add electrolytes or a squeeze of lemon for flavor. Staying hydrated helps not only my hair but also my skin and overall energy levels.


9. Lifestyle Habits & Stress Management

One of the most overlooked natural hair growth tips has nothing to do with products or treatments — it’s about how we live day to day. Stress, lack of sleep, and poor diet can all show up in the health of our hair. I’ve personally noticed that during periods of high stress, my hair feels weaker and sheds more than usual.

That’s why managing stress and taking care of my overall wellbeing has become part of my hair journey. I try to maintain a regular sleep schedule (at least 7–8 hours each night), practice light yoga or meditation a few times a week, and spend time outdoors to recharge. These simple lifestyle habits don’t just improve my mood and energy — they directly support my hair health too.

Nutrition also plays a huge role. I make sure my meals include leafy greens, protein, and omega-3-rich foods like salmon or walnuts. Pairing this with vitamins designed for hair has been a game-changer in keeping my strands strong and shiny.

When I think about the big picture, it’s clear: one of the most effective natural hair growth tips is treating my whole body with care. Because healthy hair starts from within.


comb hair

10. Prioritize Sleep & Stress Management

One of the most underrated natural hair growth tips for women in their 30s is focusing on sleep and stress levels. I’ve noticed that whenever I go through periods of little rest or high stress, my hair is always the first to show signs — it feels weaker, sheds more easily, and loses its shine.

Getting at least 7–8 hours of quality sleep every night gives your body time to repair, regulate hormones, and support healthier hair growth. Pair that with simple stress-relieving activities — like meditation, journaling, or a short evening walk — and you’ll see the difference not just in your mood, but in your hair too.

For me, adding calming teas before bed and sticking to a consistent evening routine has been a game changer. Your hair reflects your overall health, and when your body is well-rested and calm, your scalp is in the best condition to grow stronger, healthier strands.

 

Why Japanese People Stay Slim Without Ever Joining a Gym

Why Japanese People Stay Slim Without Ever Joining a Gym

Why Japanese People Stay Slim Without Ever Joining a Gym

 

There’s something I’ve always found a bit surprising about Japan: people there stay fit without doing the things we usually think “fit people” do.

Like:

  • Are they not chasing for any kind of gym memberships, right?

  • And they’re not counting protein grams

  • Even though they’re not planning intense workout schedules

And yet… they move really well, their posture looks good, and even older adults seem steady, mobile, and active.

It always made me wonder: How do they stay this fit without a big fitness culture?

So I spent a few weeks observing what daily movement really looks like in Japan, but obviously not to gyms or workout plans — but to the small, everyday moments.

The things people rarely think about, but do automatically.

Here’s what I found.

 

Movement Isn’t “Something They Schedule” — It’s Just Part of Living

In most parts of the world, movement is something you have to schedule. You plan it, schedule it, or go for a run or hit the gym before work.

But outside of that, most of the day is spent sitting at the desk, car, couch, phone… repeat.

However, this is not the case in Japan, where movement is an integral part of daily life.

Like, people walk everywhere in Japan, not just for “exercise.” Just because it’s the most convenient way to live.

Whether it’s walking to the station, walking to buy groceries, or walking home from school, it’s normal for even older adults to get in thousands of steps without thinking about it.

The average person in Tokyo walks over 7,000 to 10,000 steps a day without even trying. That only includes running errands, commuting, and day-to-day activities.

Public transport is a big part of this.

Because it’s so widely used, people naturally end up walking more — to and from trains, between platforms, through city streets.

Even shopping becomes a light cardio session.

You won’t hear someone say, “I’m going for a walk for exercise.” Walking is just… how they live.

 

They Sit on the Floor — And That Changes Everything

One thing I noticed right away: Japanese homes and restaurants often use floor seating.

That means squatting, kneeling, and constantly getting up and down from the floor, which keeps hips, knees, and core muscles engaged.

As a physiotherapist, I can tell you — this is huge.

Floor mobility is something most people lose with age because we stop practicing it.

But in Japan, they never stop. So they never lose it.

It’s not a workout. It’s just… how life works.

 

They Stretch Before Doing Anything Else

One of Japan’s most iconic habits is Radio Taiso — a national stretching routine broadcast on TV and radio.

  • Kids do it in schools.

  • Office workers do it before meetings.

  • You’ll even see groups of elderly people in parks doing synchronized stretches to piano music.

It lasts about 3 minutes without equipment, just slow, mindful movement to get the blood flowing.

I tried it for two weeks straight, and honestly, it made a bigger difference than I expected.

It loosened up my stiff joints in the morning and gave me a quick energy boost, without the mental resistance that often comes with “working out.”

It’s one of the most underrated forms of movement,t and it’s culturally normalized in Japan.

 

A Culture That Respects the Body

This part might be harder to describe, but you feel it everywhere.

There’s a deep-rooted respect in Japan for balance, discipline, and care — not just toward others, but toward your own body.

You don’t abuse it by overworking, overtraining, or underfeeding. You don’t try to “hack” it into burning more calories.

Instead, you maintain it the way you maintain a garden, like with small, steady effort and patience.

Fitness isn’t about chasing six-packs or personal records. It’s about feeling well enough to do what you need to do, every single day.

That mindset changes everything.

 

What I Learned from Watching and Trying It Myself

For a long time, I thought I had to work out intensely to be healthy — that movement had to be sweaty, structured, and hard.

But after following these small, daily habits from Japanese life, I felt a different kind of strength building.

Not the kind you get from lifting heavier weights, but the kind that comes from consistency, grace, and trust in your body.

I wasn’t going to the gym. I wasn’t tracking anything. But I was walking more, sitting less, stretching daily, and cooking in a way that felt like self-care instead of a chore.

 

Should You Try It?

Honestly… yes.

Especially if you’re who feels stiff in the morning, or someone who keeps promising themselves they’ll “start working out soon,” but never quite gets there.

These small habits don’t require discipline, equipment, or motivation. They just blend into the day in a way that feels natural.

You don’t need to walk 10,000 steps, you don’t need to sit on the floor for every meal, you don’t need to copy everything from Japanese culture.

But adding a little more natural movement into your day, the kind that doesn’t feel like a workout, can make a bigger difference than you think.

If you’re tired of forcing yourself into routines you can’t stick to, this is a gentler place to start.

 

My Takeaway

What surprised me most wasn’t how much people in Japan move.

It was how effortless the movementwass. No emotional pressure, no guilt, no “I should be doing more.”

Just simple habits that quietly add up.

When I started trying a few of these myself — walking more, sitting on the floor sometimes, doing a few minutes of stretching — I didn’t feel like I was “being good.” I just felt more connected to my body, less tense, less rushed.

And honestly, that alone felt like progress.

I’m not saying everyone needs to live like the Japanese. But I do think there’s something worth borrowing: the idea that movement doesn’t always have to be a task. It can just be a part of how you live.

If your days feel heavy or stiff or too sedentary… start small like this:

  • walk a little more

  • Sit a little lower

  • Stretch for two minutes before the day carries you away.



How Exercise Rewires Your Brain for Greater Endurance

How Exercise Rewires Your Brain for Greater Endurance

 

How Exercise Rewires Your Brain for Greater Endurance

When we exercise, our fitness improves. Most of us understand the basic reasons why this happens (and after spending more than eight years studying exercise science, I certainly hope I do!).

Endurance training leads to well-documented improvements inside the body. It increases both the number and efficiency of mitochondria — the tiny power plants that produce energy for our cells. It also promotes the growth of a richer network of blood vessels and capillaries, enhancing oxygen delivery to working muscles.

Over time, the body becomes more efficient at using both fat and carbohydrates as fuel. Even the heart undergoes structural adaptations. It grows stronger and slightly larger, enabling it to pump a greater volume of blood with each beat and circulate it more effectively throughout the body.

These physiological changes work together to improve stamina, performance, and overall endurance.

 

Strength training has some overlapping but distinct effects on physiology, mainly increasing the size and number of muscle fibers (referred to as hypertrophy and hyperplasia, respectively) as well as their strength and force output capacity; the latter a result of improvements in our neuromuscular system’s ability to coordinate and recruit contracting muscle fibers.

These improvements are largely attributed to peripheral signals from the body, that is, metabolic and mechanical changes occurring in our legs, arms, and elsewhere. In other words, exercise science has generally taken a “bottom-up” approach to training adaptation.

Myokines (chemical messengers originating from contracting muscle) and metabolites (byproducts of glucose/fat breakdown, such as lactate) released during exercise activate a range of signaling cascades that allow the body to adapt to the training stimulus (to prepare for that marathon you’ve got coming up in 12 weeks).

With all the focus on the body, we sometimes (ironically) forget about the brain, relegating it to the realm of psychologists and neuroscientists, not fitness experts. Of course, we know that exercise has brain health benefits in the short- and long-term. It’s probably one of the best things you can do to support healthy brain aging.

 

But what if the brain was actually responsible for the fitness we gain with exercise, perhaps getting stronger itself to facilitate endurance?

More intriguingly, could certain brain circuits be required for endurance adaptations?

According to a new study (it’s in the running for my favorite science finding of the year), the answer to both of those questions is yes. And even though the study was in mice, it might just change the way you think about your next workout.

Researchers zeroed in on neurons in a region of the brain known as the ventromedial hypothalamus (VMH). Specifically, neurons in this region express a transcription factor known as steroidogenic factor-1 or SF1, and are considered to be a classic integrator hub for metabolic signals like glucose, insulin, and a hunger/satiety hormone called leptin in order to regulate energy expenditure.

In this paper, they referred to the VMH SF1 neurons as the candidate “exercise history encoder.”

They then built a tight and logically beautiful chain of evidence that goes like this:

  1. Exercise activates these neurons in mice.
  2. Training reshapes their post-run dynamics, and
  3. The post-run activity of these neurons is required to get normal endurance adaptations.

Let’s take a closer look.

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Kindel et al. (2026)

First, they asked, “Do these neurons even respond to exercise?”

After a single bout of treadmill exercise, SF1 neurons showed higher expression of BDNF (brain-derived neurotrophic factor), a gene that tends to rise when neurons are activated. In one VMH subregion, the proportion of SF1 neurons expressing BDNF increased from 34.5% to 42.2% with exercise.

Next was “Are these neurons necessary for endurance and training adaptation?”

They used a genetic trick to block neurotransmitter release from SF1 neurons — essentially cutting their output lines — then ran mice through a treadmill “stress test” (basically a VO2 max test for mice) while measuring oxygen and CO₂ so they could infer fuel use. Importantly, VO₂max looked similar during the test, but endurance performance did not. The mice quit sooner and ran slower when SF1 neurons were blocked. Even more interesting, they shifted toward carbohydrate use earlier and at lower intensities, suggesting their fuel-selection strategy under stress was altered.

They also looked at muscle gene expression after training plus a run to exhaustion. In normal mice, exercise triggered lots of the expected transcriptional changes in muscle; in the SF1-silenced mice, those exercise-induced gene expression changes were “nearly abolished.” That’s a big deal, because those molecular shifts are part of how muscle becomes more oxidative and fatigue-resistant over time (i.e., how we build endurance).

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VMH SF1 output is required for physiological adaptations to exercise. From Kindel et al. (2026)

Next question: “Does training change how these neurons fire?”

To answer this, they recorded SF1 neuron activity in living mice and found two main patterns: some SF1 neurons were suppressed right when the run ended (“post-run inhibited”), and others lit up when the run ended (“post-run activated”). After one week of treadmill training, the balance shifted strongly toward that post-run activation pattern. Roughly 31.8% of neurons were “post-run activated” on day 1 versus 53.2% on day 8 (with fewer neurons falling into the “inhibited” or “no change” buckets). Training made the brain respond more to the end of exercise, not less.

The final question is perhaps the most important one: “Is post-run activity of these neurons actually causing endurance gains?”

This is the part that makes the paper so fun. They used a technique called optogenetics to manipulate SF1 neurons after each training session — turning them off (inhibiting them) or turning them on (stimulating them).

When they inhibited SF1 neurons for 15 minutes after every workout, the normal gains in endurance were blunted. They also prevented the typical post-exercise rise in blood glucose (without changing body weight), hinting that part of the signal of endurance adaptation might be about restoring fuel availability for recovery.

When they stimulated SF1 neurons for 60 minutes after workouts, endurance improved beyond the usual plateau, and even stimulation alone (without training) nudged the mice’s metabolism toward higher carbohydrate use and higher overall energy expenditure/oxygen consumption. It had an “exercise mimicking” effect.

There was also evidence of training-related plasticity in this brain circuit. SF1 neurons became more excitable and appeared to receive stronger excitatory input after endurance training, which fits the idea that the brain is literally encoding exercise history.

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Exercise training increases excitatory input to VMH SF1 neurons. From Kindel et al. (2026)

This was one of those studies I simply couldn’t wait to read and write about. It doesn’t have a clean, actionable takeaway like some of the other physiology studies I share (I’ll try to give you some), but it’s freaking fascinating (to me, and hopefully to you).

It argues for a meaningful top-down component to exercise adaptation by telling us that, at least in mice, the brain is largely responsible for the downstream recovery and remodeling programs after exercise, especially in the window right after you stop. In fact, this paper strengthens the idea of a “narrow” post-exercise recovery window during which a training session is encoded, and future adaptations are hardwired into our body.

Does this mean we should start prioritizing “neurological recovery” techniques after our workouts as we do with nutrition and muscle-focused approaches? Perhaps. It tells me that maybe we shouldn’t finish a workout and then hop immediately into high-stress work or stimulating social media. Our brain and nervous system need time to do their job.

The obvious caveat here is translation. These are mice, on treadmills, with genetically/optogenetically manipulated neurons. That’s not the same as saying we’ve found the “endurance switch” in humans.

Ok, now bear with me while I get science-fictiony. Because what immediately came to mind after reading this study was two scenarios where these findings might apply: an “exercise pill” and neurodoping.

In the world this study hints at, the most powerful performance enhancer wouldn’t be something you take before a race; it would be something that quietly tweaks the 15–60 minutes after the workout, when the body is deciding what to rebuild, what to store, and what to upregulate for next time. You don’t need to run harder. You just need to convince the system that you did, and that it should adapt accordingly.

This is where the idea of “neurodoping” gets enticing (and a little creepy).

If endurance adaptation is partly gated by a brain circuit that can be turned up or down, it opens the possibility that neuromodulation could make training “count” more. Think recovery-enhancing brain stimulation, wearable brain tech, or a pill that amplifies the brain’s post-exercise learning signal. It’s also where the concept of “exercise in a pill” becomes increasingly possible.

In the past, most “exercise-mimicking drugs” (or the idea of them) have targeted a single pathway. But if we could design something to target the brain’s key endurance-enhancing command center, it might be able to integrate all relevant training signals to recapitulate the benefits of a workout without a drop of sweat lost. It could be a game-changer for people with diseases, older individuals with limitations to exercise, injuries, or those days when you just can’t find the time for the treadmill.

I’ll be a bit more convinced of these scenarios if the findings of this study can be replicated in humans. Until then, let’s just embrace the idea that there is potentially still a LOT to learn about how the body rewires itself to perform better.

And the next time you set a new personal best in a 5k or a marathon, thank your brain as much as you do your body for getting you to the finish line.