The Cell Comes Before the Gene™

Genes provide instructions, not guarantees.

They represent tendencies, susceptibilities, and possibilities – not predetermined outcomes.

Cells determine whether those genetic instructions can be carried out.

The Systems Physiology Method™ begins with the cell because physiology determines genetic expression.

Genes provide potential. Physiology determines performance.

Introduction

Genetics has transformed the way we think about health, offering valuable insights into why people may be more susceptible to certain conditions. But genes are only part of the story.

Most cells in your body share the same genetic information, but they can act very differently. What determines whether a gene is expressed isn't simply the genetic code itself, it's also the physiological environment in which that gene exists.

The Systems Physiology Method™ begins with the cell because cells are where life happens. Before asking what your genes might be doing, it's more important to ask whether your cells have the capacity to receive, interpret, and respond to those genetic instructions.

When we understand the condition of the cell first, genetics becomes one piece of a much larger physiological picture rather than the starting point for every health investigation.

Why We've Been Looking in the Wrong Place

Over the past two decades, genetics has become one of the most popular ways to explain complex health problems. Many people begin searching for answers by focusing on individual genes or SNP reports.

People are now searching for answers through:

• MTHFR
• COMT
• SNP reports
• Gene variants

But there's an important question being overlooked:

"Can the cell carry out those genetic instructions?"

If the cell lacks the energy, nutrients, or physiological capacity to function properly, understanding the gene alone tells only part of the story.

What Genes Really Do

Genes contain the instructions, but they are not the ones doing the work.

They provide the blueprint, but every function in your body depends on cells reading, interpreting, and carrying out those instructions.

A gene cannot produce energy, repair tissue, respond to inflammation, or build proteins on its own. Those are functions performed by the cell.

This is why the same gene can produce different outcomes in different people. Gene expression is influenced by the physiological environment of the cell, including energy production, nutrient availability, inflammation, hormones, toxins, and many other factors.

Understanding genes is valuable. Understanding whether the cell has the capacity to carry out those genetic instructions is what completes the picture.

The Cell Is the Worksite

Genes provide instructions, but the work itself happens inside the cells. Repair, chemical reactions, hormone responses, and energy production all depend on processes occurring within the cells.

For a cell to function efficiently, it requires adequate ATP, nutrients, oxygen, effective cellular signalling, and healthy cell membranes.

When these foundational requirements begin to decline, the cell begins to struggle to carry out the genetic instructions it has received.

The blueprint hasn't changed. The worksite has.

Physiology Changes the Outcome

Same Genetic Variant. Different Physiology. Different Outcome.

Genetics can influence how our bodies function, but genes don't operate in isolation. They exist within living cells, and those cells are constantly responding to their physiological environment.

This is why two people with the same genetic variant can have different health experiences. One person remains healthy, while the other develops symptoms. The difference is not explained by the genetic variant alone. It also reflects the physiological condition of the cells expressing it.

Factors such as nutrient availability, cellular energy (ATP), inflammation, oxidative stress, hormonal signalling, and the body's ability to adapt all influence how genetic potential is translated into real-world physiology.

Genes may provide the blueprint, but physiology determines how that blueprint is carried out.

Genes Don't Operate in Isolation

This all comes back to the hierarchy of physiology.

Gene expression is shaped by the cellular, tissue, and systemic environment surrounding it.

Genes exist inside cells. Cells exist inside tissues.

Tissues form organs. Organs build systems.

Symptoms are downstream.

Key Takeaway

Rather than asking: "Which gene variant do I have?"

Start asking: “Does the cell have the physiological capacity to carry out its genetic instructions?”

The Cell Comes Before the Gene™

The goal isn't to dismiss the importance of genetics. Genes do matter.

But genes don't function in isolation. They exist within cells, and cells depend on energy, nutrients, communication, and a healthy physiological environment to carry out those genetic instructions.

That's why the Systems Physiology Method™ begins with the cell.

When we understand the condition of the cell, we gain a deeper understanding of why genes can be expressed differently from one person to another.

The Broader Perspective

Genes provide potential. Cells provide the capacity to express it. Physiology determines performance.

That's why we begin with the cell.