Are you someone who silences every notification the moment it appears, or do you pause and tell yourself: “Ki ete sa?” Now imagine for a moment, if our bodies worked the same way.

It is a typical Wednesday morning. You wake up, follow your routine and feel completely well. No pain, no discomfort and nothing out of the ordinary. Yet, deep within, a single cell begins to behave differently. It divides when it should not. A minute, almost imperceptible shift, silent and invisible. If our bodies could send notifications, perhaps we would receive alerts such as: “Abnormal cell activity detected.” “Repair mechanisms activated.” “Monitoring is needed.”

Would we open them or dismiss them without even thinking? The truth is that these processes are happening constantly. Way before any diagnosis is made, the body is already responding to subtle internal changes. Cells adapt and repair mechanisms do the job, all without disrupting how we feel. But unlike our devices, the body does not notify us in ways we can easily perceive. Its messages exist at a molecular level, beyond sensation and beyond awareness.

This is why, in everyday clinical practice, patients rarely present at this stage. They come when the signals are no longer insignificant. They come to the healthcare facilities when they manifest persistent pain, unusual bleeding, a palpable lump or extreme fatigue. By then, the body is no longer whispering. It is screaming for attention. Yet behind these symptoms lies a much longer and quieter story.

In many cancers, whether breast, cervical, colorectal or prostate, the disease does not begin at diagnosis. It develops gradually, often over years. Cells change. Patterns shift. The body adapts remarkably well, maintaining normal function despite underlying disease. Life goes on. Work continues. Smiles remain unchanged. “I felt completely fine,” is a phrase often heard after a diagnosis. And it is profoundly thought-provoking.

Feeling healthy does not always mean being healthy. Early disease, particularly cancer, rarely announces itself. It does not interrupt daily life or demand immediate attention. It progresses quietly and in the noise of everyday living, such subtle changes go unnoticed. This is why, even in modern medicine, many diagnoses occur later than we would hope, not due to neglect, but because the body is remarkably capable of remaining silent… until it no longer can.

Cancer is not something that happens overnight. It is a disease that develops gradually by a combination of bad instruction, environmental factors and failed safety mechanism of the body. To understand how cancer develops, we need to look into how cells behave, their molecular environment as well as their genetic code.

The cellular level: Imagine that our body follows the norms of a strict society of cells, where the normal cells have a specific cell cycle which is like a carefully planned schedule. During this cycle, the cell will grow, divide, perform their respective functions and eventually die to make space for new cells. However, before a cell is allowed to divide, it must pass through different security gates (checkpoints) to ensure it is in good health.

Cancer starts with this cell cycle dysfunction where the pre-cancerous cells bypass the checkpoints, ignoring the body’s signals and start to divide uncontrollably. Despite being damaged or have a defect, they refuse to self-destruct and eventually this uncontrolled growth leads to the formation of a tumour, which then crowds over the healthy tissues.

Another source of cancer is on the molecular level, even when the cells are working properly, cancer can still form if the management and surrounding environment of the cells are faulty. In our body, we have different molecular switches which decide whether a gene is expressed or not. When these molecular switches are flipped incorrectly, they may silence good genes which normally protect cells from growing too fast.

A cell in isolation does not become cancerous; there are other environmental factors like smoking, alcohol consumption, viral infections such as Epstein-Barr virus (EBV) and Human papillomavirus (HPV) that may create the toxic environment and external pressure which disrupts the molecular signalling. This toxic environment then encourages the precancerous cell to grow and spread.

These subtle changes in our body leave clues, “biomarkers” in our blood and tissues long before a cancer is detected. At the very core of the cell, there is a blueprint, a code known as our DNA and cancer is ultimately driven by physical changes to this code. It is important to know that having a mutated cell does not mean that you have cancer. Some cells change and adapt but they are harmless. Cancer needs a ‘perfect storm’ of specific changes:

1. Genes that encourage cell growth known as oncogenes.

2. Mutation of genes that controls the cell cycle, stops damaged cell from dividing and fix DNA errors. When these genes are damaged, they fail to repair the cells and the control system breaks.

The combination of these changes, the faulty code, the flipped switch, the broken checkpoints, provide the cells the ability to become dangerous and spread. When the DNA in a single cell is faulty, the body doesn’t just let it get away. Our body has a security system known as the immune system. When this damaged cell is detected, our immune system is activated to destroy it. However, sometimes these mutated cells disguise themselves and fight back, silently multiplying into a tiny, hidden cluster.

At this stage, you won’t feel a lump, but you might experience few tiny signs of this invisible battle: constant fatigue that sleep won’t fix, unexplained low grade fevers or persistent body ache. These everyday signs are so small that they are often dismissed as stress or minor bugs. When no action is taken, the cells use this time to establish the blood supply they need and grow into a physical mass.

Our everyday habits play a big role in how healthy our cells are. Eating a lot of deep-fried foods, along with high levels of obesity and diabetes, can lead to chronic inflammation in the body. As we get older, the ongoing stress inside our bodies can harm our DNA and turn off the protective molecular switches (epigenetic switches). This creates an ideal setting for pre-cancerous cells to grow. We can take preventive steps to safeguard our DNA by keeping our blood sugar levels stable, enhancing our dietary choices and maintaining an active lifestyle. Yet, these efforts are just part of the solution. Regular screenings and early detection are vital components to maintain a good health. Detecting cancer early, even before any physical symptoms appear, increases the chance of being treated at early stages.

While traditional screenings like mammograms and colonoscopies are crucial today, the future of cancer detection lies in liquid biopsies. This groundbreaking and straightforward minimally invasive blood test that looks for tiny fragments of mutated cancer DNA floating in the bloodstream. By combining healthier lifestyle choices with these cutting-edge early detection tools, we can catch cancer long before a tumour develops.

Perhaps, someday, science will bring us closer to a world where these silent signals are no longer hidden. Where a simple easy test would read the whispers of our cells and convert them into something we can understand and specially, something we can act upon early. But even today, we are not entirely without guidance.

Regular screenings, mindful living and a willingness to pay attention to even the smallest changes are, in their own way, the closest things we have to these “notifications.” They are not perfect, but they are extremely powerful. And sometimes, they are enough to change a story entirely. Because cancer is not a snapshot. It is a process. One that uncoils quietly and often goes unnoticed. And while we may not yet hear every “ping” our body sends, we can learn not to wait for the loud “beep-beep.”. We can choose to listen a little earlier. To act a little sooner. To understand a little deeper. Because long before a diagnosis is made, long before a symptom appears, our bodies have already been speaking to us. The real question is: are we ready to listen?

Bio

* Nikhil Gobin is a final-year medical student at SSR Medical College, passionate about precision and preventive medicine, dedicated to making medical knowledge clear, accessible, and meaningful for all.

** Sarah Bibi Mungly is currently completing her MSc in Life Sciences, with a specialized research focus on breast cancer epigenetics. She is passionate about leveraging molecular insights to advocate for early and accessible cancer detection.