/Health

More than 1.5 billion people around the world live with chronic pain. And for many of them, the suffering didn't start with some unavoidable disease. It started with choices, habits, and neglect that could have been prevented. That's uncomfortable to say. But it's true. --- ## What chronic pain actually is, and why it's different from regular pain Think of acute pain as an alarm. Your body notices something wrong and sounds the alert. You treat the problem, the alarm stops. Simple. Chronic pain is something else entirely. It's an alarm that keeps going off even after the fire is out. Or worse, an alarm that goes off for no fire at all. Medically, we talk about chronic pain when it lasts three to six months or more, either constantly or coming and going. But the real difference isn't just time. It's what's happening inside the nervous system. With chronic pain, the brain actually rewires itself around the pain. Neurons that send pain signals become hypersensitive, or oversensitive. They start firing with tiny triggers, or with no trigger at all. This is called central sensitization. Think of it like a car alarm that's been bumped so many times it now goes off when someone walks past. The system itself has been damaged. > Chronic pain isn't just "pain that sticks around." It's a disease of the nervous system, with its own neurological changes, its own cognitive effects, and a deep impact on mental health. Brain scans of people with chronic pain actually show a reduction in gray matter in the prefrontal cortex, the part of the brain responsible for decisions, emotional regulation, and impulse control. This isn't a metaphor. Chronic pain physically changes the brain, sometimes permanently. ## Where it all starts Chronic pain rarely appears out of nowhere. It has roots, usually across three areas: biological, psychological, and social. And it's often the combination of all three that creates the right conditions for pain to move in and stay. ### The biological causes, the obvious ones These are the ones most people recognize. Conditions like rheumatoid arthritis, fibromyalgia, diabetic neuropathy, degenerative back problems, chronic migraines, or post-surgery complications. In these cases, there's a clear physical origin. But even here, becoming chronic isn't automatic. It depends a lot on how the patient and the healthcare system handle the early stages. ### The mind-body connection, which is more real than you think For decades, mainstream medicine was reluctant to use the word "psychosomatic," afraid of seeming like they were telling patients the pain was all in their head. But modern neuroscience has settled this debate: the distinction between physical pain and emotional pain is largely artificial. The brain processes both in the same regions. Unresolved emotional trauma, prolonged severe stress, and chronic anxiety can literally generate real physical pain, not as a performance, but as a genuine neurological response. John Sarno, a rehabilitation physician at New York University, spent decades documenting how emotional repression, especially unprocessed anger and fear, creates real muscle tension, nerve compression, and chronic pain. His Tension Myositis Syndrome theory is still debated, but it's gaining more and more support in the scientific literature. ### Early trauma and how the body remembers it Here's something that surprised me when I first came across it: the way your nervous system regulates pain can be shaped long before any injury ever happens. Children who grow up in environments of physical abuse, emotional neglect, or chronic family stress end up with a stress response system that runs permanently hot. The hormonal axis that controls cortisol, your main stress hormone, gets calibrated to a state of constant alert. And that state, carried into adulthood, makes chronic pain significantly more likely. ## Who's most at risk There's no single profile for a chronic pain patient. But research has identified patterns worth knowing. **Women** have higher rates of fibromyalgia, chronic migraines, and irritable bowel syndrome. Hormonal, immunological, and social differences all play a role. **People over 50** have decades of joint wear, reduced bone density, and accumulated small injuries that were never properly treated. **People with anxiety or depression** are caught in a cycle that feeds itself: poor mental health lowers pain tolerance, and chronic pain worsens mental health. Aliás, this relationship goes so deep that treating one without treating the other almost never works. **Workers with physically demanding jobs**, like construction workers, nurses, and farmers, accumulate repetitive strain injuries that evolve into chronic conditions when left untreated. **Trauma survivors** show a strong link between PTSD, adverse childhood experiences, and chronic pain, even with no clear physical injury to explain it. **People with obesity** put extra load on joints, promote low-grade systemic inflammation, and disrupt hormonal regulation, all of which prime the body for persistent pain. ## The human errors that build chronic pain This is probably the hardest section to read. And the most important one. A significant portion of chronic pain cases have roots in behaviors, choices, and omissions that could have been avoided. This isn't about blaming people who suffer. It's about being honest: a lot of pain is built slowly, over years, through action or inaction. ### Ignoring warning signs for years The body warns you. It warns you with pain that "goes away with a painkiller," with tiredness that gets blamed on work, with tension that gets ignored because there's no time to deal with it. Millions of people manage recurring acute pain with self-medication for years, never realizing they're treating symptoms while the underlying problem quietly progresses. By the time the pain finally settles in permanently, the nervous system has already been remodeled. ### Sitting still and the price of a sedentary life The human body was built to move. Modern life specializes us in stillness: eight hours sitting at a desk, two hours sitting in a car, three hours lying on a sofa watching a screen. That prolonged posture, with a weak core and a spine under repeated stress, is one of the leading causes of chronic lower back pain, the most common form of chronic pain in the world. The frustrating part? Most people in this situation know they should exercise. The gap between knowing and doing is exactly where chronic pain grows. > Studies show that just 20 to 30 minutes of walking per day reduces the risk of developing chronic lower back pain by up to 25%. The barrier isn't biological. It's behavioral. ### Chronic stress that never gets addressed Stress activates the sympathetic nervous system, the fight-or-flight mode. When that state becomes permanent, muscles stay tense, systemic inflammation rises, sleep suffers, and the pain threshold drops. Someone living years under severe professional or relational stress, with no way to manage it, is slowly building the ideal conditions for chronic pain. And in most cases, that person knows they're stressed. They just don't do anything about it. ### Painkillers used as a long-term solution One of the best-documented paradoxes in pain medicine: excessive use of painkillers, especially opioids, can itself cause chronic pain. This is called opioid-induced hyperalgesia. The mechanism is clear: over time, the drug makes the nervous system more sensitive to pain, not less. On top of that, anti-inflammatories taken chronically without medical supervision suppress tissue repair processes that the body actually needs. In other words, the attempt to control pain in the short term makes it worse in the long run. ### Emotional neglect: the pain that has no name In cultures where people don't talk about feelings, and this includes most Mediterranean and Portuguese-speaking cultures, emotions like anger, fear, grief, and humiliation tend to get suppressed rather than processed. The body finds another way to express them. This somatization isn't weakness. It isn't performance. It's neurobiology. Not going to therapy when you need it, not talking to anyone about what you're carrying, accumulating years of unresolved resentment or anxiety: these are all factors that increase the likelihood of chronic pain. Bom, it's not the whole story, but it's a bigger part of the story than most people are willing to admit. ### Chronic sleep deprivation Sleep is when the nervous system repairs itself, inflammation gets regulated, and the pain memory gets reprocessed. People who chronically sleep less than six hours have significantly lower pain thresholds. And sleeping badly is, in large part, a choice, or the result of choices: screens at midnight, caffeine in the afternoon, irregular schedules, bedrooms not set up for real rest. ## The healthcare system is also failing It would be unfair to put all the responsibility on individuals without acknowledging that healthcare systems have systematically failed at managing chronic pain. In many countries, including Portuguese-speaking ones, the medical model still treats chronic pain as a symptom of something else, rather than a disease in its own right. Appointments are short, waiting lists are long, and access to multidisciplinary teams, which is the only approach with solid evidence behind it, remains a privilege for the few. The predictable result: patients get a prescription for painkillers and are sent home. No physiotherapy, no psychology, no structured lifestyle change. The general practitioner treats the symptom because they don't have the time or resources to treat the person. > In Portugal, it's estimated that only 5% of chronic pain patients have access to specialized pain units. In Brazil, the number is even lower. Pain medicine remains one of the most underfunded specialties in public health systems across the Portuguese-speaking world. ## What actually works The research is clear about what genuinely reduces chronic pain over time. It's not a single drug. It's a recalibration of the nervous system, and that requires several approaches working together. **Regular physical exercise**, especially aerobic endurance and strength training, reduces inflammation, releases endorphins, strengthens supporting muscles, and recalibrates the nervous system. Na prática, it's one of the most powerful tools available and one of the least used. **Pain-focused psychotherapy**: Cognitive Behavioral Therapy has strong evidence for reducing the perceived intensity of chronic pain. It doesn't erase physical pain, but it changes the patient's relationship with it, which, in practice, changes everything. **Sleep hygiene**, with consistent schedules, no screens before bed, and a proper sleep environment. Restorative sleep is medicine. Aliás, it might be the most underrated medicine there is. **Stress management** through mindfulness meditation, diaphragmatic breathing, and reducing excessive demands. The autonomic nervous system can actually be trained to come down from a state of permanent alarm. **Multidisciplinary care**: doctor, physiotherapist, psychologist, and when relevant, a nutritionist. Chronic pain doesn't get resolved by a single specialty working in isolation. **Pain education**: understanding the neurological mechanisms behind chronic pain reduces the fear associated with it, and that fear reduction itself reduces pain intensity. This effect, documented in multiple studies, is called Pain Neuroscience Education. ## A final thought Chronic pain is one of the silent epidemics of the 21st century. Silent because it doesn't kill directly. It just quietly destroys quality of life, relationships, productivity, and mental health. Silent also because so much of it was preventable, and acknowledging that is uncomfortable for patients and healthcare systems alike. There's no intention here to blame people who suffer. There is, though, a conviction that honesty about causes, including the ones that depend on us, is the first step toward prevention. And when prevention is no longer an option, toward effective treatment. Chronic pain may not have a definitive cure for everyone. But for most people, it can be managed, reduced, and lived with in a far less devastating way than it is today for hundreds of millions of people. The question isn't whether the body will hurt. It's whether we're willing to take care of it while we still can choose to.