Fibromyalgia caused by ‘pain processing’ problem
Fibromyalgia caused by ‘pain processing’ problem
By Olivia Bowthorpe
Researchers have found strong genetic evidence that fibromyalgia is mainly a disorder of the central nervous system.
The team identified 26 genetic regions which affected the risk of developing the chronic pain condition in the largest study of its kind.
Professor Frances Williams, co-senior author on the paper and professor of genomic epidemiology at King’s College London, said it provides “conclusive evidence” that there is a genetic foundation for a condition that some people believe does not exist.
Williams said: “By studying the DNA of over 2 million individuals we can be confident that the findings are real and they suggest that fibromyalgia represents a problem in pain processing.”
The team used international data on more than 2.5 million people, including almost 55,000 with fibromyalgia.
In Nature Medicine, the authors said the common and debilitating chronic pain syndrome has a “poorly understood etiology”.
“This work provides robust genetic evidence defining fibromyalgia as a central nervous system disorder, thereby establishing a biological framework for its complex pathophysiology,” the team said.
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Fibromyalgia Caused by a “Pain Processing” Problem
Fibromyalgia is a chronic condition that causes widespread pain, fatigue, sleep problems, memory difficulties, and many other symptoms. For years, people believed that fibromyalgia was caused by damage to muscles or joints. Today, research suggests something different. Scientists now believe that fibromyalgia is largely related to a pain processing problem in the brain and nervous system.
This does not mean the pain is imaginary. The pain is real. Instead, it means that the body’s pain control system is not working properly.
What Is Pain Processing?
Pain processing is the way your brain and nervous system receive, interpret, and respond to pain signals. Normally, if you touch something hot or injure yourself, pain signals travel through nerves to your brain. Your brain decides how much pain you should feel.
In fibromyalgia, this system becomes overly sensitive. The brain may amplify normal sensations, making even gentle touch, pressure, or everyday activities feel painful.
Central Sensitization
One of the leading explanations for fibromyalgia is a process called central sensitization.
Central sensitization means:
The brain becomes more sensitive to pain.
The spinal cord sends stronger pain signals.
Normal sensations may be interpreted as painful.
Pain lasts longer than it should.
This helps explain why people with fibromyalgia often experience pain without obvious injury or inflammation.
Why Does This Happen?
Researchers believe several factors may contribute:
Genetics
Physical trauma
Emotional stress
Viral or bacterial infections
Sleep disorders
Hormonal changes
Often, several of these factors work together.
The Brain in Fibromyalgia
Brain imaging studies show that people with fibromyalgia process pain differently from people without the condition.
Scientists have found:
Increased activity in pain-related brain regions.
Reduced ability to block pain.
Changes in communication between brain cells.
Increased sensitivity to pressure, heat, and cold.
These findings support the idea that fibromyalgia is a neurological pain-processing disorder.
Chemicals Involved
Several brain chemicals may play a role.
Higher Levels Of
Substance P
Glutamate
These chemicals can increase pain sensitivity.
Lower Levels Of
Serotonin
Dopamine
Norepinephrine
These chemicals help regulate mood, sleep, and pain control.
An imbalance may contribute to chronic pain and fatigue.
Why Simple Touch Can Hurt
Many people with fibromyalgia experience pain from things that normally should not hurt.
Examples include:
Wearing tight clothing
A gentle hug
Sitting too long
Cold weather
Light pressure
Brushing against furniture
This is called allodynia.
Pain Is Only One Symptom
Fibromyalgia affects much more than pain.
Common symptoms include:
Extreme fatigue
Brain fog
Poor concentration
Memory problems
Morning stiffness
Headaches
Irritable bowel syndrome
Anxiety
Depression
Sleep disturbances
These symptoms are connected because the nervous system affects many parts of the body.
Why Sleep Matters
Poor sleep makes the nervous system even more sensitive.
Many patients wake up feeling exhausted even after sleeping for many hours.
Improving sleep often helps reduce pain levels.
Stress And Pain
Stress activates the body’s “fight or flight” response.
Long-term stress may:
Increase pain sensitivity.
Worsen fatigue.
Trigger flare-ups.
Make sleep problems worse.
Learning stress-management techniques can be an important part of treatment.
Diagnosis
There is no single blood test or scan that confirms fibromyalgia.
Doctors usually diagnose it by:
Reviewing symptoms.
Performing a physical examination.
Ruling out other conditions.
Assessing widespread pain lasting at least three months.
Treatment
There is currently no cure, but many treatments help manage symptoms.
Treatment may include:
Regular gentle exercise
Walking
Swimming
Stretching
Cognitive behavioral therapy
Stress reduction
Good sleep habits
Physical therapy
Certain prescription medications
Every person’s treatment plan is different.
Exercise Helps The Brain
Exercise may sound difficult when you’re in pain.
However, regular low-impact exercise can:
Reduce pain sensitivity.
Improve sleep.
Increase energy.
Improve mood.
Strengthen muscles.
Reduce stiffness.
Starting slowly is important.
Nutrition
No single diet cures fibromyalgia.
Many people benefit from:
Fruits
Vegetables
Whole grains
Lean protein
Healthy fats
Drinking enough water
Limiting processed foods, excess sugar, and alcohol may also help some individuals.
Mental Health
Living with chronic pain can affect emotional well-being.
Support from family, friends, healthcare professionals, and support groups can make a significant difference.
Seeking help for anxiety or depression is an important part of overall care.
Living Well With Fibromyalgia
Although fibromyalgia is a long-term condition, many people improve their quality of life by combining treatments and healthy lifestyle habits.
Helpful daily strategies include:
Pacing activities.
Taking regular breaks.
Keeping a consistent sleep schedule.
Staying physically active.
Managing stress.
Eating a balanced diet.
Following medical advice.
Tracking symptom triggers.
The Future Of Research
Scientists continue to study why pain processing changes in fibromyalgia.
Researchers are exploring:
New medications
Brain imaging techniques
Nervous system therapies
Personalized treatments
Better diagnostic tools
These advances may lead to more effective care in the future.
Conclusion
Fibromyalgia is increasingly understood as a disorder of pain processing rather than damage to muscles or joints. The brain and nervous system become overly sensitive, causing normal sensations to feel painful. This understanding helps explain why people with fibromyalgia experience widespread pain, fatigue, sleep problems, and brain fog, even when routine tests appear normal. With proper treatment, healthy lifestyle changes, and ongoing medical support, many people with fibromyalgia can manage their symptoms and lead active, meaningful lives.
