Pulitzer Prize-winning journalist and war correspondent Peter Arnett has died at the age of 91, US media has reported. Arnett won the international reporting prize in 1996 for his Vietnam War coverage at the Associated Press (AP). But he was also well known for his work at CNN
Effects Of Long-Term Exposure To Pollution On Your Respiratory Health
Effects Of Long-Term Exposure To Pollution On Your Respiratory Health
The most alarming change I have observed over my years of clinical practice is not just the increase in asthma cases during winter, but the gradual, silent restructuring of healthy lungs in people who have never smoked a cigarette in their lives. Air pollution is often dismissed as a seasonal irritant, something to complain about when the smog rolls in. But the long-term effects of exposure are far more sinister. This is not merely an environmental issue; it is a slow, personal health crisis unfolding inside your chest, breath after breath.
Dr Bornali Datta, Director, Respiratory & Sleep Medicine, Medanta, explains what prolonged exposure to pollution does to your lungs and how you can protect yourself.
The Invisible Accumulation
When we talk about pollution, we often refer to Particulate Matter (PM2.5). These microscopic particles are so small that they do not stop at the nose or throat. They bypass the body's natural defence mechanisms and reach deep into the tiny air sacs of the lungs (alveoli). From there, PM2.5 can even cross into the bloodstream, circulating throughout the body and contributing to inflammation in other organs including the heart raising the risk of hypertension, heart attacks, and other cardiovascular diseases.
Imagine your lungs as a sponge that slowly collects dust and toxins after years of exposure. This constant irritation triggers chronic inflammation. Over time, the body's persistent effort to fight these foreign particles leads to scarring (fibrosis), causing the lungs to lose their elasticity. You may not notice this damage in your 20s or 30s, but by your 40s, climbing just one flight of stairs can leave you breathless. This is accelerated lung ageing.
Beyond the Cough: A New Normal
The most dangerous aspect of long-term exposure is normalisation. Many of my patients ignore early warning signs such as a persistent morning cough, frequent throat clearing, or a sense of heaviness in the chest because they believe it's simply due to the weather or allergies.
However, prolonged exposure is one of the leading triggers of the following conditions:
Adult-onset Asthma: Adults with no prior history of asthma suddenly developing symptoms.
COPD (Chronic Obstructive Pulmonary Disease): Once considered a smoker's disease, we now see rising cases of non-smoker COPD caused by environmental toxins.
Decreased Lung Function: Children exposed to extremely high levels of pollution may never reach their full lung capacity, resulting in lifelong respiratory limitations.
We cannot stop breathing, but we can change how we breathe and how we protect our lungs. You do not need to live in fear, you need to live consciously.
Watch, Don't Guess
Check AQI apps regularly. Step outside only when the air quality is acceptable. Ideally, limit outdoor activities to 11 am–3 pm, when pollution levels are usually lower.
Create a Clean Zone
You spend one-third of your life sleeping. Keep your bedroom dust-free, well-ventilated when air quality permits, or use an air purifier.
Diet as Defence
Eat a diet rich in antioxidants, fruits, vegetables, nuts, and seeds—to help combat inflammation.
Routine Lung Checks
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If you live in a metro city, include a Pulmonary Function Test (PFT) in your annual health check-up, just like your blood sugar or cholesterol test.
Long-term exposure to pollution acts like a slow poison, but prevention remains the most effective cure. Strengthening your lung health today is essential if you want to breathe freely tomorrow.
Source: News18
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Pulitzer Prize-winning journalist and war correspondent Peter Arnett has died at the age of 91, US media has reported. Arnett won the international reporting prize in 1996 for his Vietnam War coverage at the Associated Press (AP). But he was also well known for his work at CNN
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