By now, the system is clear.
Particles are produced.
Particles are cleared.
And interventions can influence both sides.
In many cases, that works.
Particle levels fall.
Risk is reduced.
But not always.
Even when clearance is improved, particle levels do not always normalize.
Even when cholesterol is reduced, risk does not fully disappear.
This pattern has been observed for years.
Residual risk persists.
That raises a different kind of question.
If we understand the system…
and we know how to influence it…
what are we still missing?
One possibility is that we are only acting on part of the system.
For decades, most of the focus has been on clearance.
Improving the liver’s ability to remove particles from circulation.
And that approach has been effective.
But clearance is only one side of the balance.
If particle burden reflects both production and clearance…
then focusing primarily on removal leaves something unaddressed.
Production.
Every ApoB-containing particle begins in the liver.
It is assembled, packaged, and released into circulation.
And yet, in practice, this process is rarely treated as a primary point of control.
Not because it is unimportant.
But because it has been harder to define.
Production is not a single pathway.
It is influenced by metabolic signals.
Energy balance.
Substrate availability.
Hormonal regulation.
It is dynamic.
And in many individuals, it is not stable.
When production increases, more particles enter the system.
Even if clearance is functioning, it can be overwhelmed.
Particles continue to accumulate.
Exposure continues.
This helps explain why improving clearance does not always fully resolve risk.
The system is still being driven from the other side.
Seen this way, the problem is not incomplete knowledge.
It is incomplete application.
We understand how to remove particles.
But we are only beginning to understand how to regulate how many are produced in the first place.
That is the gap.
Not a flaw in the model.
A missing layer within it.
And once that layer becomes visible, the direction forward begins to change.
This framework is explored in more detail in The Particle Problem.
A preview is available here:
Continue reading → Rethinking Where the System Is Controlled
Or start here - The LIV System