Trauma and Stress-Related Illness
Trauma and Stress-Related Illness What We Know and What We Are Still Learning When a person receives a significant medical diagnosis, it is common for a...

Trauma and Stress-Related Illness What We Know and What We Are Still Learning When a person receives a significant medical diagnosis, it is common for a difficult question to arise. "Why did this happen to me?" Some people begin looking at their diet. Others think about genetics. Lifestyle habits. Exercise. Rest. And many, especially after reading information online or hearing certain narratives, begin asking something else: "Could this have been caused by the trauma I experienced?" It is a deeply human question. Because when we experience illness, we seek to understand. We need to make sense of what is happening. We want to know whether there was something we could have done differently. However, precisely at this point, it becomes especially important to distinguish between what science understands with reasonable evidence and what is still being investigated. In recent years, many messages have appeared claiming that trauma stored in the body causes autoimmune disease, cancer, fibromyalgia, digestive problems, hormonal disorders, or virtually any illness. Some of these claims arise from a genuine desire to better understand the body. Others oversimplify an extraordinarily complex subject. The scientific reality is much more interesting. And also much more hopeful. Today we know that chronic stress and difficulties with nervous system regulation can influence numerous biological processes. The immune system. Inflammation. Sleep. Metabolism. Cardiovascular function. Digestion. Hormonal balance. And many other mechanisms involved in health.
We also know that experiences of childhood trauma and complex trauma may be associated, over the long term, with an increased risk of developing different health problems. But association does not mean a single cause. Health never depends on one factor alone. Genetics. Environment. Nutrition. Physical activity. Sleep quality. Pollution. Relationships. Access to healthcare. Social conditions. Life experiences. And many other factors interact continuously throughout our lives. Understanding this complexity does not diminish the importance of the nervous system. It places it where it actually belongs. Not as the only protagonist in the story. But as one of the systems that continually participates in the extraordinary task of sustaining life. Perhaps the most important question is not: "Was my illness caused by trauma?" Maybe the question science can better address today is: "How do stress, difficult experiences, and the nervous system influence our health, and what can we do to support processes of recovery and well- being?" That is the path we will explore throughout this article. Not to look for someone or something to blame. Nor to reduce complex illnesses to a single explanation. But to develop a broader, more rigorous, and deeply human understanding of the relationship between the body, health, and the experience of being alive. Because perhaps one of the greatest acts of care is not finding an explanation for everything. It is learning to understand the extraordinary complexity through which life expresses itself in each of us. Science Explains The Body Functions as a Network, Not as a Collection of Isolated Parts
For a long time, medicine studied each system of the body separately. There were specialists for the heart. For the digestive system. For the immune system. For the brain. For hormones. And this knowledge has been fundamental to the enormous advances we benefit from today. However, contemporary research reveals something even more fascinating. The organism functions as a deeply integrated network. The brain is constantly communicating with the immune system. Hormones influence the nervous system. The gut communicates with the brain through the gut-brain axis. Sleep modifies immune responses. Physical activity changes brain function. Emotions participate in the regulation of numerous physiological processes. And the autonomic nervous system coordinates many of these silent conversations that keep the organism alive. Nothing functions entirely in isolation. When we experience a stressful situation, for example, our emotional state is not the only thing that changes. Heart rate can change. Breathing can change. Muscle tension can increase. Hormones such as cortisol and adrenaline can be released. Immune activity can shift. Metabolism can change. And numerous cellular processes that allow the organism to respond to the situation can be altered. All of this is normal. The problem does not arise because we have a stress response. The stress response is an extraordinary adaptive strategy. The challenge arises when this mobilization remains active for long periods without sufficient opportunities for recovery. Research on chronic stress shows that prolonged activation can influence different biological systems and increase the risk of developing various health problems. Here, precise language is important. Scientific evidence speaks of increased risk, association, or probability. It does not establish a direct cause-and-effect relationship for every person. Two individuals may experience very similar circumstances and develop completely different health trajectories.
Why? Because health is always the result of multiple interacting factors. Genetics. Age. Nutrition. Sleep quality. Physical activity. Tobacco or alcohol use. Environmental pollution. Infections. Working conditions. Access to healthcare. Social support. Childhood experiences. And many other elements continuously participate in this complex network. Precisely because of this, when we talk about childhood trauma, complex trauma, or early adverse experiences, science uses careful language. We know that these experiences may increase the risk of different health conditions throughout life. But we cannot say that a person will develop a particular illness simply because they experienced trauma. Nor can we conclude that when a person develops an illness, there must necessarily be a hidden trauma behind it. Reality is much more complex. One of the studies that has contributed significantly to this understanding is research on Adverse Childhood Experiences (ACEs). This work showed that as certain adverse experiences during childhood increase, so does the statistical risk of different physical and mental health problems in adulthood. What matters is understanding what this information actually means. Risk is not destiny. Greater risk is not a sentence. Many people who have experienced extremely difficult circumstances develop excellent physical health. And others who grew up in protective environments may become ill for many different reasons. Biology never functions as a simple equation. At the same time, research into psychoneuroimmunology, allostasis, low- grade chronic inflammation, and nervous system regulation continues to show how the organism constantly adapts its functioning to the environment in which it lives.
When the body has access to rest, movement, supportive relationships, adequate nutrition, and a sense of safety, numerous processes can support balance and recovery. When demands exceed the capacity to recover for extended periods, the organism continues adapting, but that sustained effort may increase physiological wear and tear. Bruce McEwen described this phenomenon as allostatic load. It does not mean that the body is failing. It means that it has been working very hard for too long to maintain balance. This way of understanding health profoundly changes our perspective. We no longer think only in terms of isolated diseases. We think in terms of systems that are constantly communicating. We think about adaptation. Recovery. Flexibility. And the extraordinary capacity of the organism to reorganize when favorable conditions become available. Perhaps this is why one of the most important questions is no longer simply: "What disease do I have?" We can also ask: "What conditions help the different systems of my organism work together more effectively and support my health today?" Because the body is not a collection of independent parts functioning separately. It is an extraordinarily complex community of systems working together, moment by moment, to sustain life. And understanding that complexity allows us to move beyond simplistic explanations and approach, with greater humility and hope, the remarkable intelligence with which our organism attempts to care for us every day. Experience Gives Meaning When We Stop Looking for Someone to Blame and Begin to Understand the Body Receiving a significant diagnosis can profoundly change the way a person sees their life. Alongside medical treatment, difficult questions often emerge. "Why did this happen to me?" "Did I do something wrong?" "Could I have prevented it?" These are deeply human questions.
When the body becomes ill, we search for an explanation that can help restore some sense of order in the midst of uncertainty. In that search, many people encounter messages claiming that every illness has an emotional origin or that every health problem comes from trauma. Although these ideas may initially provide a sense of clarity, they can also create a very heavy burden. Without realizing it, a person may begin to feel responsible for what they are experiencing. As though they had not healed enough. As though they had thought the wrong thoughts. As though their emotions had created their illness. Scientific evidence does not support that conclusion. And, above all, it is not a compassionate perspective. Life is much more complex. There are people who have experienced profoundly painful circumstances and enjoy excellent physical health. There are also people who grew up in protective environments and develop significant illnesses. We will not always find a single explanation. And accepting that uncertainty can be difficult. But it can also be deeply liberating. Because it allows us to stop looking for someone to blame. And begin looking for ways to care. When we understand that the organism functions as a complex network, the conversation changes. We no longer need to constantly ask what we did wrong. We can ask what our body needs today. Perhaps it needs appropriate medical treatment. Rest. Movement. Nutrition. Emotional support. Safe relationships. Psychological care. Time to recover. Or a combination of many of these things. There is no single path to health. Every organism tells a different story. And every recovery process deserves to be accompanied with respect. At Sentido Somático, we believe that knowledge should relieve suffering, not add to the burden people are already carrying. That is why we avoid messages that promise absolute explanations.
We do not believe that the body becomes ill because a person has failed to forgive. Nor because they have repressed certain emotions. Nor because there is hidden trauma waiting to be discovered. We believe that the organism is constantly attempting to adapt to an extraordinarily complex reality. And that this adaptation can express itself in very different ways from one person to another. Understanding this also changes our relationship with suffering. Illness no longer becomes evidence that we have failed. It can begin to be understood as a human experience that deserves care, knowledge, and support. Perhaps one of the deepest forms of emotional recovery does not consist of finding a perfect explanation for everything we experience. Perhaps it consists of discovering that we can care for ourselves even when we do not have all the answers. Because uncertainty is also part of life. And learning to inhabit it with greater compassion can become an unexpected source of strength. Perhaps this is one of the greatest gifts that science and somatic work can offer when they enter into dialogue. Not the illusion that we can completely control our health. But the possibility of developing a more respectful relationship with a body that, even in the midst of illness, continues doing everything it can to sustain life. Because ultimately, understanding the organism does not mean finding someone to blame. It means learning to accompany, with greater wisdom, the extraordinary complexity of being alive. Practice Transforms An Invitation to the Body When we receive a great deal of health information, it is easy for our attention to focus exclusively on what might be going wrong. We begin observing every symptom. Every sensation. Every change in the body. And little by little, we may begin living with the feeling that the body is a problem that constantly needs to be solved. But there is another way of approaching it. Not to ignore illness. Nor to replace medical care.
But to remember that even when we are experiencing a health problem, our body continues carrying out thousands of processes to sustain life. I invite you to try a very simple practice. It is not intended to discover the origin of an illness. It is simply an invitation to recognize the extraordinary intelligence with which your organism continues working in this very moment. If it feels comfortable, pause for a few minutes. Allow your breathing to find its natural rhythm. There is no need to change it. Simply accompany it. Now bring your attention to a part of your body that, at this moment, is not demanding all of your attention. Perhaps your hands. Your feet. The sensation of your back being supported. Or the feeling of clothing against your skin. Stay there for a few moments. As you observe that part of your body, remember something. Right now, your heart continues beating without you having to ask it to. Your lungs continue exchanging oxygen. Millions of cells are working to repair tissues. Your immune system remains attentive. Your brain coordinates countless functions. Your kidneys filter your blood. Your digestive system carries out complex processes of digestion and communication with the nervous system. All of this happens silently. Even if you are ill. Even if you are in pain. Even if you are not feeling well today. The body continues working toward life. Allow that idea to remain with you for a few moments. Not to deny what is difficult. But to broaden your perspective. The organism is not only the symptom currently demanding your attention. It is also the immense number of processes that continue supporting you. Now ask yourself with curiosity: "What small gesture of care could I offer today to this organism that is working so hard for me?" Perhaps it is getting a little more rest. Going for a walk if your condition allows it. Preparing a nourishing meal. Drinking water.
Asking for help. Following the treatment recommended by your healthcare team. Talking with someone you trust. Spending a few minutes breathing in fresh air. Or simply stopping the habit of speaking harshly to yourself. You do not need to transform your entire life today. Care rarely begins with dramatic changes. It often begins with small, repeated gestures that remind the nervous system that supportive experiences also exist. At Sentido Somático, we believe that nervous system regulation is not only about learning techniques. It also involves developing a different relationship with our body. A relationship in which curiosity replaces judgment. Where respect takes the place of blame. And where care stops being an obligation and becomes a daily way of accompanying life. Perhaps this is one of the deepest practices we can cultivate. Not simply asking which illness we want to avoid. But also asking: "How can I collaborate today with the extraordinary intelligence with which my organism is trying to sustain my life?" Because even in the most difficult moments, the body continues doing something extraordinary. It keeps searching, moment by moment, for the balance necessary for life to continue. Research Continues The relationship between stress, the nervous system, and physical health is one of the most active areas of research in contemporary medicine. Thousands of studies are published each year seeking to understand how life experiences influence the functioning of the organism and which factors support recovery. Today, there is broad agreement on several points. We know that acute stress is a normal biological response that is necessary for survival. We also know that chronic stress, when maintained for long periods without sufficient opportunities for recovery, can influence numerous physiological processes. Research has found associations between prolonged stress and changes in cardiovascular function, metabolism, immune regulation, sleep, digestive health, and various inflammatory processes. However, science also reminds us of something equally important.
Associations do not demonstrate causation. When two phenomena appear to be related, it does not mean that one is the only cause of the other. For example, one person may have experienced childhood trauma and later develop an autoimmune disease. Another person with similar experiences may maintain excellent health throughout their life. And a third person may develop the same illness without any known history of traumatic experiences. This diversity reminds us that human health never depends on one factor alone. Genetics. Environment. Lifestyle. Infections. Nutrition. Physical activity. Sleep quality. Pollution. Social conditions. Access to healthcare. Personal history. And many other factors interact continuously. This is precisely why contemporary research increasingly works with integrative models. Rather than attempting to explain disease through a single cause, researchers seek to understand how multiple factors interact to support or undermine health. Another particularly hopeful area of current research is the growing interest in protective factors. For many years, science primarily asked: "What increases the risk of illness?" Today it also asks: "What supports health and recovery?" This difference profoundly changes our perspective. There is increasing research into the role of restorative sleep, adapted physical activity, meaningful relationships, nutrition, nature, reduced social isolation, nervous system regulation, sense of purpose, and other factors that contribute to well-being. Not because these experiences eliminate the risk of illness completely. But because they can support the organism's capacity to adapt. Research is also continuing to explore how different interdisciplinary interventions may support quality of life for people living with chronic illness. Medicine.
Psychology. Physiotherapy. Nutrition. Somatic education. Social work. Physical activity. All of these disciplines contribute complementary perspectives. None of them has all the answers on its own. And perhaps this is one of the most important lessons science can teach us. The more we learn, the more aware we become of the extraordinary complexity of the human body. A Question to Keep Exploring Instead of searching for one single explanation for my health… What small conditions can I cultivate today that may help my organism function as well as possible? Perhaps the answer will not appear through one major transformation. Maybe it will begin with something simple. Sleeping a little better. Moving the body regularly. Spending time with people who help us feel safe. Following the treatment recommended by our healthcare professionals. Creating spaces for rest. Reducing, whenever possible, some sources of stress. And remembering that caring for the body is not only about avoiding illness. It is also about supporting, day after day, the conditions in which life can continue expressing itself as fully as possible. Because perhaps the greatest lesson contemporary science offers us is this: Health does not depend on finding one single cause. It depends on understanding that we are extraordinarily complex organisms, capable of adapting, learning, and continually seeking balance throughout life. The Research Behind This Article At Sentido Somático, we believe that one of the greatest advances in contemporary science has been the recognition that health cannot be explained through a single discipline. The human organism functions as an extraordinarily complex network in which the nervous system, immune system, endocrine system, metabolism, sleep, emotions, relationships, and environment are in constant communication. Over the last several decades, research has shown that chronic stress can influence numerous biological processes related to health.
Research has also found associations between adverse childhood experiences, nervous system regulation, and an increased risk of developing different health conditions throughout life. However, scientific evidence also invites us to remain cautious. Association does not mean causation. When two phenomena appear to be related, it does not mean that one completely explains the other. For this reason, this article avoids simplistic claims such as "trauma causes all illness" or "every illness has an emotional origin." These statements do not reflect the current state of scientific knowledge. Reality is much richer. Health emerges from the continuous interaction of biological, psychological, social, and environmental factors that change throughout life. Understanding this complexity does not diminish the importance of the nervous system. On the contrary. It allows us to place it within the extraordinary network of processes that sustain life. At Sentido Somático, we believe that science is most valuable when it helps us develop a more respectful relationship with the body. We do not seek to use knowledge to find someone to blame. We seek to understand more deeply how the organism continually attempts to adapt and which conditions support its capacity for recovery. Reference Books Bruce S. McEwen (1998). Protective and Damaging Effects of Stress Mediators. One of the foundational publications on allostatic load, explaining how the organism maintains balance through adaptation and what happens when that effort continues over long periods. Robert M. Sapolsky (2004). Why Zebras Don't Get Ulcers. A reference work for understanding the physiology of stress, its effects on different systems of the organism, and the extraordinary adaptive capacity of the human body. Hans Selye (1956). The Stress of Life. The classic text that introduced the modern concept of stress as a biological adaptive response. Stephen W. Porges (2011). The Polyvagal Theory. Explores the relationship between the autonomic nervous system, the perception of safety, and physiological regulation. Aaron Antonovsky (1979). Health, Stress and Coping. Introduces the model of salutogenesis, proposing a question that remains fundamental to contemporary research:
What supports health? Related Research and Disciplines This article draws on research from multiple fields: • Neuroscience. • Stress physiology. • Psychoneuroimmunology. • Neuroendocrinology. • Lifestyle medicine. • Salutogenesis. • Interpersonal neurobiology. • Attachment theory. • Nervous system regulation. • Resilience research. • Somatic education. Each contributes an important part of our understanding of how the organism responds, adapts, and seeks to maintain balance throughout life. What We Know Today Current scientific evidence supports the understanding that chronic stress can influence numerous physiological systems and increase the risk of different health problems. We also know that factors such as restorative sleep, physical activity, nutrition, supportive relationships, contact with nature, reduced social isolation, and nervous system regulation can support processes of well-being and recovery. At the same time, none of these variables explains the onset or progression of a disease on its own. Health remains the result of complex interactions among multiple factors. This distinction is especially important when we talk about trauma and health. Having experienced trauma does not mean that a person will necessarily develop an illness. And developing an illness does not necessarily mean that trauma is behind it. Between these two extremes lies an enormous diversity of human experience. What We Are Still Researching Science continues to explore how trauma, stress, inflammation, the gut microbiome, the immune system, genetics, epigenetics, metabolism, and many other biological processes interact. Researchers are also investigating how early adverse experiences may influence different health trajectories and which factors can support resilience and recovery.
This field continues to evolve. Some associations are well documented. Other mechanisms are not yet fully understood. And some claims that circulate widely within the field of trauma and health still lack sufficient evidence. That is why it is important to distinguish between: what we know, what appears likely, what we are investigating, and what we still cannot claim. This distinction does not reduce hope. It makes hope more honest. Every new discovery expands our understanding and reminds us that the human body remains one of the most complex systems we know. For this reason, at Sentido Somático we periodically review the scientific literature and update our content as the available evidence evolves. Our Commitment Our commitment is to maintain an honest dialogue between science and human experience. We do not want to offer simple explanations for complex phenomena. We want to support you in developing an increasingly broad, rigorous, and deeply compassionate understanding of your body. We believe that understanding the organism does not mean discovering that something inside us is defective. It means recognizing the extraordinary intelligence with which life attempts to sustain itself, adapt, and recover at every moment. Because perhaps the most important question is not simply: "Why did this illness appear?" Maybe the question that can accompany us from this point forward is: "What conditions can I cultivate, together with appropriate medical care, to offer my organism the best possible opportunities for health, adaptation, and well-being?" And perhaps that question, rather than searching for someone to blame, brings us closer to a form of care grounded in knowledge, hope, and deep respect for the complexity of being alive.