While inflammation is the body's natural response to injury or infection, doctors say long-term or chronic inflammation can quietly damage organs, accelerate ageing and create conditions that increase the risk of several chronic diseases, including cancer.
According to Dr Navin Gnanasekaran, Head of Radiology at Apollo Hospitals, Chennai, and author of The 100-Year Blueprint, chronic inflammation acts like a "silent fire" that continues burning inside the body for years, often without producing noticeable symptoms.
How Chronic Inflammation Can Increase Cancer Risk
Experts explain that chronic inflammation continuously damages healthy cells and DNA. As cells repeatedly repair themselves, the chances of genetic mutations increase, raising the possibility of uncontrolled cell growth—a hallmark of cancer.
Inflammation can also interfere with autophagy, the body's natural process of removing damaged or abnormal cells. When this mechanism slows down, unhealthy cells may survive longer and eventually become cancerous.
While inflammation alone does not cause cancer, it creates a biological environment that makes cancer development more likely over time.
Why Indians May Be More Vulnerable
Dr Gnanasekaran says Indians are particularly prone to accumulating visceral fat, the fat stored around internal organs.
Unlike fat beneath the skin, visceral fat actively releases inflammatory chemicals such as cytokines and tumour necrosis factor (TNF), keeping the body in a continuous state of low-grade inflammation.
Over time, this persistent inflammation can damage blood vessels, the heart, brain and other organs while increasing the risk of metabolic disorders and cancer.
Warning Signs Often Go Unnoticed
One of the biggest concerns with chronic inflammation is that many people experience no obvious symptoms.
By the time fatigue, weight gain, insulin resistance or chronic illnesses become visible, inflammation may already have been affecting the body for years.
Doctors therefore recommend regular preventive health check-ups, especially for people with obesity, diabetes, high blood pressure or a family history of chronic diseases.
Tests That Can Detect Chronic Inflammation
Doctors recommend discussing the following tests during preventive health screenings:
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C-Reactive Protein (CRP)
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High-Sensitivity CRP (hs-CRP)
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ESR (Erythrocyte Sedimentation Rate)
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Homocysteine levels
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Fasting insulin to detect insulin resistance
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Waist circumference measurement
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DEXA scan or body composition analysis to assess visceral fat
Monitoring these indicators can help identify inflammation before it leads to serious health complications.
Lifestyle Changes That Help Reduce Inflammation
According to experts, chronic inflammation can often be reversed through long-term lifestyle improvements.
Some of the most effective ways to reduce inflammation include:
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Sleeping 7–8 hours every night
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Strength training to build muscle mass
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Reducing visceral fat through regular exercise
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Limiting ultra-processed foods and refined sugar
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Eating foods rich in fibre, fruits and vegetables
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Practising intermittent fasting or time-restricted eating under medical guidance
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Maintaining a healthy body weight
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Staying physically active throughout the day
These habits improve metabolic health and reduce the inflammatory burden on the body.
Why Prevention Matters
Health experts believe preventing chronic inflammation is one of the most effective long-term strategies for reducing the risk of cancer, cardiovascular disease and premature ageing.
Rather than relying on supplements or quick fixes, consistent lifestyle choices remain the most effective way to extinguish the "silent fire" before it causes irreversible damage.
FAQs
Can chronic inflammation cause cancer?
Chronic inflammation does not directly cause cancer but increases cancer risk by damaging DNA, promoting genetic mutations and interfering with the body's ability to remove abnormal cells.
What causes chronic inflammation?
Obesity, visceral fat, poor diet, lack of exercise, smoking, excessive alcohol consumption, chronic stress and inadequate sleep are among the leading causes.
Which blood tests detect inflammation?
CRP, hs-CRP, ESR, homocysteine and fasting insulin are commonly recommended tests to assess chronic inflammation.
Can inflammation be reversed?
Yes. Regular exercise, healthy eating, quality sleep, weight loss and reducing visceral fat can significantly lower chronic inflammation over time.
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