Healing Passion

Personalized Therapeutic Lifestyle Changes (pTLC) for chronic illnesses and long-term health.

08/09/2026

We often talk about protein as if it has only one job: building bigger muscles.

But muscle health is much more complex.

A new framework describes seven hallmarks of healthy muscle: bioenergetics, proteostasis, genomics, excitability, structure, regeneration and cross-talk with other organs.

This changes the protein discussion.

Protein supplies the building blocks.
Bioenergetic capacity supplies the energy to use them.
Recovery gives the body time to rebuild.

At the same time, human studies suggest that the body can use larger protein doses for much longer than the old “30 grams per meal and the rest is wasted” idea suggested.

And the protein leverage hypothesis adds another angle: when diets are low in protein density, we may keep eating in an attempt to reach our protein needs.

So perhaps the better question is not:

“How little protein can I get away with?”

but:

“Am I regularly providing enough protein to support maintenance, adaptation and recovery?”

This does not mean unlimited protein for everyone, especially in people with established kidney disease. But it does mean the usual “protein causes cancer” or “protein damages kidneys” slogans are far too simplistic.

Protein is not simply a growth signal.

It is a recurring physiological resource.

Read the full post: https://wix.to/C3fQTsd

What muscle biology, bioenergetics and the protein leverage hypothesis tell us about regular protein intake—and why some protein myths need updatingFor decades, discussions about protein have tended to fall into two extremes.One side treats protein mainly as a bodybuilding nutrient: useful if you ...

04/09/2026

What if aging is not simply a collection of things that go wrong?

The familiar Hallmarks of Aging framework has been extremely useful for identifying important biological processes such as mitochondrial dysfunction, inflammation, cellular senescence, altered nutrient sensing, and loss of proteostasis.

But an older geroscience model offers another perspective.

In a 2014 Cell commentary, Kennedy and colleagues presented seven “pillars of aging” as an interconnected network—including metabolism, inflammation, proteostasis, regeneration, and adaptation to stress.

That raises an important question:

What determines whether stress produces successful adaptation—or persistent physiological constraint?

Our framework approaches aging dynamically:

Challenge → Respond → Adapt → Recover

When recovery is complete, physiological reserve can be restored.

When recovery is repeatedly incomplete, adaptive responses may persist, resources may remain redistributed, and physiological flexibility may gradually decline.

This is where our concepts of Exposure-Related Malnutrition (ERM) and Bioenergetic Impedance fit into the picture.

The Hallmarks tell us much about what aging looks like biologically.

The emerging framework asks:

How does the organism get there?

I explore this distinction in the new blog:

Aging Is Not a Checklist: From Hallmarks to Stress, Adaptation, Recovery, and Network Constraint.
Read more: https://wix.to/ipHTdvn

For much of modern aging research, one of the most influential ways to think about aging has been through the Hallmarks of Aging: genomic instability, telomere attrition, epigenetic alteration, loss of proteostasis, mitochondrial dysfunction, cellular senescence, altered nutrient sensing, and other....

03/09/2026

A laboratory report usually asks a simple question:

Is the result normal or abnormal?

But biology is rarely that binary.

A recent UK Biobank study looked at more than 117,000 middle-aged adults with no known chronic disease. Surprisingly, about one-third were already classified as prefrail.

They did not share one single abnormal biomarker.

Instead, researchers found a multisystem pattern involving body composition, inflammation, glucose regulation, lung function, kidney/muscle-related markers, liver markers, endocrine function, and blood cells.

Even more interesting: most average biomarker values were still within conventional clinical ranges.

This does not mean a high-normal or low-normal result is automatically unhealthy.

It suggests that we may learn more by asking:

Where is the biomarker positioned?
Which direction is it moving?
What physiological domain does it belong to?
What pattern emerges when we look across the whole system?

That is very different from searching for one “magic biomarker.”

Early physiological vulnerability may be a pattern before it becomes a diagnosis.

I discuss this study and what it may mean for interpreting biomarkers, functional reserve, prefrailty, and recovery in the new blog.

Read the full article: https://wix.to/E7lj9F1

Most laboratory reports are designed around a simple question: is the result inside or outside the reference interval?That distinction is clinically useful. A markedly abnormal glucose level, inflammatory marker, liver enzyme, or renal marker deserves attention. But biology does not suddenly change....

01/09/2026

Is high protein good or bad?

Are carbs the problem?

Does fat make us fat?

Or is everything simply about calories?

A recent review in Nature Reviews Endocrinology suggests that these questions may be too simplistic.

One fascinating idea is the protein leverage hypothesis: humans seem to regulate protein intake relatively strongly. When protein becomes diluted by fat and carbohydrate, we may eat more food in an attempt to reach our protein requirement.

That means excess calorie intake can sometimes be an outcome of nutrient regulation, rather than simply a failure to control calories.

But this does not mean we should all eat very high-protein diets either.

Protein needs change with age, activity, repair and anabolic demand. Carbohydrate quality matters. Fat interacts with both protein and carbohydrate. Even amino-acid composition matters.

And our metabolism is rhythmic:

feeding ↔ fasting
anabolism ↔ catabolism
exercise ↔ recovery
wakefulness ↔ sleep

So the real question may not be “Which macronutrient is bad?”

It may be:

What does the body need now, what nutrient mixture are we providing, and can it return to balance once that need has been met?

I discuss the review and its implications in my latest article:

Beyond Calories and Macro Wars: What Protein Leverage Tells Us About How We Really Eat.

Read the full article: https://wix.to/svThvtw

For decades, nutrition has been framed as a competition between macronutrients.First, fat was blamed for obesity and cardiovascular disease. Then carbohydrate became the problem, particularly through its effects on insulin. More recently, protein has increasingly been promoted as the solution: more....

25/08/2026

What if depression is not primarily a problem of “low serotonin,” but a downstream manifestation of a much broader physiological struggle?

A recent review brings together growing evidence connecting depression with insulin resistance, obesity, inflammation, stress-axis dysfunction, and altered brain insulin signaling. It also highlights a meta-analysis of more than 240,000 people showing that insulin resistance markers were elevated during acute depression but not during remission.

From a bioenergetic perspective, we can organize these observations differently.

When stress, nutrient pressure, illness, environmental exposures, or other demands exceed the capacity of our biological systems to process and recover from them, bioenergetic impedance develops.

The body then compensates: insulin resistance may limit further substrate entry, adipose tissue buffers excess carbon, metabolism reroutes fuel, inflammation communicates stress, and the HPA/autonomic systems redistribute resources.

If recovery occurs, these adaptations can reverse.

But when recovery remains incomplete, compensation becomes persistent. Energetic reserve contracts, allostatic triage begins, and the brain may reduce investment in costly functions such as motivation, reward, exploration, cognition, and social engagement.

Only further downstream do we see changes in neural plasticity and neurotransmitter signaling—and eventually the depressive phenotype.

This does not make neurotransmitters irrelevant. It places them within a larger cause-to-consequence physiological framework.

That is the subject of our latest blog. https://wix.to/iGi89w1

For decades, major depressive disorder has often been explained to the public through a simple story: neurotransmitters such as serotonin or dopamine become imbalanced, and antidepressants help restore them.That explanation was always incomplete.A growing body of research now places depression withi...

22/08/2026

We usually think of mitochondrial “congestion” as too much metabolic input trying to pass through limited oxidative capacity.

But there may be another kind of congestion.

Nearly all mitochondrial proteins are made outside mitochondria. They then have to be imported, folded, assembled, repaired, and eventually removed.

A review by Song and colleagues shows that this pathway itself can become constrained. Proteins can even become stalled at mitochondrial import channels, triggering cellular stress responses designed to reduce incoming load and protect the organelle.

This adds another layer to our bioenergetic impedance framework.

Not only can carbon and electrons become congested—the machinery needed to process them must also be continually rebuilt.

And this creates an important feedback loop:

reduced respiratory function → reduced membrane potential → poorer mitochondrial protein import → poorer renewal of respiratory machinery → further loss of respiratory capacity.

This may be one mechanism by which repeated stress and incomplete recovery eventually produce bioenergetic lock-in.

It also changes how we think about tissue permissiveness. Good circulation, oxygen and nutrients matter, but the tissue must still be capable of using those resources to rebuild functioning mitochondrial machinery.

Health therefore depends not only on supply, but on throughput and recovery capacity.

Full discussion: https://wix.to/nkqxmUz

When we think about mitochondrial dysfunction, we usually think about fuel.Is enough glucose reaching the cell? Are fatty acids being oxidized efficiently? Is oxygen delivery adequate? Can electrons move through the respiratory chain fast enough to maintain ATP production?These questions are importa...

20/08/2026

We usually think about nutrients as either deficient or sufficient.

But biology may not work so simply.

A new review on micronutrition, mitochondrial dysfunction, ME/CFS and fibromyalgia highlights how many nutrients work together across energy production, electron transport, antioxidant defense, NAD⁺ metabolism and mitochondrial repair. It also raises an important point: moderate micronutrient insufficiency may create metabolic bottlenecks even when there is no classical deficiency.

Bruce Ames proposed something similar through his micronutrient triage theory: when resources become marginal, the body may preserve functions needed for immediate survival while gradually sacrificing maintenance and repair.

Our bioenergetic impedance framework suggests another step.

We can think of micronutrients as contributing to metabolic permissiveness—whether the biochemical environment allows energy to flow fast enough to meet current demand.

At rest, moderate insufficiency may hardly be noticeable.

During infection, exercise, chronic inflammation, stress or repair, the same system may reach its throughput limit much earlier.

Then:

Demand exceeds permitted throughput → impedance rises → metabolic congestion and rerouting develop → recovery becomes more costly.

If recovery remains incomplete repeatedly, the system may gradually settle into a higher-impedance state—what we call bioenergetic lock-in.

This changes the goal from simply “boosting mitochondria” to understanding what is limiting energy flow and what must be restored for the system to recover.

That may be a much more useful direction for the future of personalized nutrition and preventive health.
https://wix.to/Wfuu6Ot

Why can two people face similar physiological stress yet recover so differently?One may experience temporary fatigue, adapt, recover, and return to baseline. Another may remain exhausted for days, become increasingly intolerant of exertion, develop pain or cognitive symptoms, and gradually lose resi...

18/08/2026

What if healthy brain aging depends less on finding the right supplement and more on maintaining the ability of the whole physiological network to adapt and recover?

A new review in Ageing Research Reviews integrates nutrition, exercise, microbiota, metabolism, mitochondrial function, inflammation, inter-organ communication, and sleep in brain aging.

It reinforces an important point: our brain requires an integrated supply of macronutrients, micronutrients, structural components, metabolic cofactors, and bioactive compounds. No single nutrient can replace the system.

But there is another dimension: time.

Our metabolism naturally changes across eating and fasting, exercise and recovery, wakefulness and sleep. Healthy physiology is not static. It repeatedly moves through:

Respond → Adapt → Recover

When recovery is complete, capacity can be restored—or even strengthened.

When cumulative environmental, metabolic, psychological, infectious, and lifestyle exposures arrive faster than we can recover, the pattern may change:

Repeated challenge → incomplete recovery → accumulating bioenergetic impedance → declining resilience.

In the new blog, I explore how this can turn the review's integrated lifestyle model into a dynamic Network Physiology model of brain aging.

https://wix.to/VdDuQIv

Why does one person remain cognitively resilient into old age while another develops accelerated decline?We often look for the answer in individual factors: omega-3 fatty acids, vitamin D, exercise, sleep, the gut microbiome, glucose control, or perhaps a particular supplement. But a new review in A...

16/08/2026

Recovery is not passive.

A new Science study gives us a beautiful biological example.

Researchers followed damaged myelin—the insulating sheath around nerve fibers—in real time. After injury, myelin often became swollen. But surprisingly, swelling did not always lead to destruction.

Some damaged myelin survived and remodeled toward recovery.

The outcome was strongly influenced by what happened during this vulnerable period.

When neuronal activity remained high, swelling became worse and damaged cells were more likely to degenerate. When activity was temporarily reduced, swelling decreased and survival improved.

The related Science Perspective summarizes the idea in three words:

“Rest to repair.”

But this does not mean permanent rest.

It points toward something more fundamental:

Challenge → Respond → Adapt → Recover → Challenge again

Healthy physiology is rhythmic.

Stress requires adaptation.
Adaptation buys time.
Recovery restores capacity.

If the next demand comes before recovery is complete, we may progressively move from reversible adaptation toward maladaptation and structural damage.

This has an important clinical implication: the right intervention is not determined only by whether exercise, fasting, rehabilitation, or another stressor is generally “healthy.”

We also need to ask:

Is the system ready for the challenge now?

And afterward:

Does it have enough time and resources to recover?

That may be one of the most important questions in resilience and healthy aging.
Read the full article: https://wix.to/KRaAxYx

When we think about recovery, we often imagine something passive: stop the stress, wait long enough, and the body returns to normal.Biology is more demanding than that.Recovery is an active process. It requires time, but it also requires sufficient physiological resources to restore homeostasis, rep...

15/08/2026

We often talk about cholesterol as though there are only two possibilities: lower = good, higher = bad.

A fascinating new study suggests biology is much more contextual.

Researchers studying GBA-associated Parkinson disease found that reduced neuronal cholesterol interfered with lysosomal function—the cellular system responsible for clearing damaged material. Less cholesterol meant poorer autophagosome–lysosome fusion and reduced clearance of α-synuclein, one of the proteins that accumulates in Parkinson disease. Restoring cholesterol availability improved this clearance process experimentally.

This is not an argument for high LDL. Excessive and prolonged exposure to ApoB-containing particles remains important in atherosclerosis.

But LDL-C itself is only the amount of cholesterol being transported inside LDL particles. It does not tell us exactly how many particles are circulating. This distinction becomes particularly important in insulin resistance and metabolic syndrome, where LDL-C and ApoB particle burden can tell different stories.

Cholesterol is therefore neither simply “good” nor “bad.” It is an essential biological molecule transported through a complex metabolic system.

The more useful question may be:

Why is cholesterol at this level—and what does that level mean in the context of the whole person?

I explore this in the new blog: “Cholesterol Is Not Just a Number: Why Context Matters for Metabolic Health.”
Read our latest breakdown and what it means for personalized care. https://wix.to/nzMzBm9

For decades, cholesterol—especially LDL cholesterol (LDL-C)—has been framed primarily as something to lower. The logic is understandable: sustained exposure to ApoB-containing lipoproteins contributes to atherosclerosis, and lowering LDL-C in people at cardiovascular risk reduces cardiovascular ...