Josh has spent more than two decades studying and working directly with the human organism.

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He began in neuroscience, graduating with honours from the University of Pennsylvania before completing his medical degree at New York Medical College. He trained first in General Surgery and then in Otolaryngology–Head & Neck Surgery at Stony Brook University Medical Center, going on to work as a surgeon, attending physician, private practice physician and Clinical Assistant Professor.

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But his curiosity was never confined to a single speciality.

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Clinical medicine repeatedly brought him to the same underlying question: what determines whether the human organism functions well?

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Sleep became an important part of that inquiry. Josh became sub-certified in Sleep Medicine in 2012 and increasingly began looking beyond sleep itself to the biological systems determining it. Sleep led to circadian biology. Circadian biology led to light. Light led to mitochondria, cellular bioenergetics and the relationship between environment and physiology.

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The deeper he went into individual mechanisms, the more important their relationships became.

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How does information from the environment become biology?

How does timing alter physiology?

What determines the energy available to a cell, an organ or an organism?

What happens when biological systems that are individually well understood begin interacting inside one living human?

 

HOSA gave Josh a much larger version of the question he had already been asking.

Medicine is extraordinarily good at looking closely.

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We can study an airway, a hormone, a neurotransmitter, a mitochondrion, a sleep stage, a circadian signal or a particular physiological pathway in extraordinary detail.

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That precision matters.

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But the human being never experiences any of those things in isolation.

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Light arriving at the eye can alter circadian timing. Circadian timing influences sleep and endocrine signalling. Sleep changes cognition, metabolism, immune function and stress tolerance. Cellular energetics affect what tissues can do. Environment alters physiology. Physiology changes behaviour. Behaviour changes environment.

The parts continuously become conditions for one another.

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That is where Josh's work and HOSA meet.

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HOSA does not replace the specialist knowledge contained within medicine, neuroscience or biology. It wants to know:

Where does each piece belong within the organisation of the whole human system, and what becomes visible when the relationships between those pieces are mapped?

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For Josh, this is also where HOSA becomes scientifically interesting. If the architecture accurately represents something about how the human organism is organised, it should do more than provide a compelling explanation after the fact.

It should eventually help us predict.

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1. Why does one intervention create significant change for one person and very little for another?

2. Why does a change sometimes hold, then disappear when conditions change?

3. What is constraining the system now?

4. What must change first?

5. What capacity should become available next?

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Those questions move HOSA from description towards something testable.

Josh holds a BA with Honors in Neuroscience from the University of Pennsylvania and an MD from New York Medical College.

Following his General Surgery internship, he completed a four-year residency in Otolaryngology–Head & Neck Surgery at Stony Brook University Medical Center. He is board-certified by the American Board of Otolaryngology and received sub-certification in Sleep Medicine in 2012.

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His medical career has included surgical and private practice, hospital appointments, academic medicine, sleep medicine and regenerative medicine.

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His specialist work now includes circadian and mitochondrial medicine, sleep and regenerative medicine, photobiomodulation and photodynamic therapies, and head-and-neck interventional ultrasonography.

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Research has been part of Josh's work since his undergraduate training. While studying neuroscience at the University of Pennsylvania, he worked in a neurophysiology laboratory maintaining an Evoked Response Potential lab and conducting human experiments. He later completed a year of clinical research at New York Eye and Ear Infirmary investigating thyroid fluorescence.

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His peer-reviewed publications include research in thyroid tissue fluorescence and minimally invasive parathyroid surgery.

 

More recently, his writing and teaching have focused on light, sleep, circadian biology and mitochondrial function. He contributed the chapter Circadian and Mitochondrial Effects of Light to the clinical textbook Nutrition and Integrative Medicine: A Primer for Volume 2, and Light and Sleep to Youthful Longevity, alongside lectures on circadian rhythms, mitochondrial signalling, sleep, light and regenerative medicine.

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There is a thread through all of it. Josh has spent his career moving across scale - from brain to airway, sleep to circadian rhythm, light to mitochondria, cellular energetics to the physiology of the whole organism.

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That range matters enormously to HOSA. Because HOSA lives in the relationships.

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It is one thing to know the pieces. It is another to understand what happens when one becomes a condition for another — when light changes circadian signalling, circadian organisation changes sleep, sleep changes physiology, physiology changes available capacity, and those changes ripple through one whole human system.

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Josh brings the scientific depth to get right down inside those relationships.

Not simply: Is each piece true? But: Is the relationship true? Is it organised the way HOSA says it is? And if it is, what should happen next? That is a considerably harder scientific question.

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Josh knows enough about the pieces to challenge the Whole.

And enough about the Whole to ask more of the pieces.

That tension makes HOSA better.

Josh is HOSA's Chief Scientific Officer, co-architect, researcher and resident scientific challenger.

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HOSA brings a vast amount of established science into relationship. But established pieces do not automatically make the relationships between them established too. Sometimes putting those pieces together reveals something already well supported. Sometimes it produces a new synthesis. Sometimes it gives us a hypothesis worth pursuing. And sometimes it gives us a really good question.

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We need to know which is which. That is a big part of Josh's job.

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1. Does this phenomenon actually occur?

2. Can we observe it reliably?

3. Does this relationship make biological sense?

4. What else could explain what we are seeing?

5. What evidence supports it?

6. What would challenge it?

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And, increasingly: If HOSA is right about this, what should happen next? Then we look.

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Because HOSA is becoming much more interesting at the point where it moves beyond explaining what has already happened and begins predicting change.

 

1. If we can identify how a human system is currently organised, we should be able to identify what is maintaining that organisation.

2. If we can identify the dominant constraints, we should become better at predicting what can change from here — and what probably cannot.

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We should be able to see why an intervention might create Change That Fades, what conditions are required for Change That Holds, and what must shift in the organisation before Change That Transforms becomes possible. And we should be able to get some of that wrong. In fact, we need to.

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Some predictions will hold. Some will sharpen the architecture. Some will expose something we have missed entirely.

Good. That is how the map gets better.

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Josh helps us hold that line: curious enough to follow what nature appears to be showing us, and disciplined enough not to confuse what we observe with what we infer from it.

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