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Heart attack causes: Air pollution can raise risk of heart diseases, stroke

Air pollution is not just a problem for the lungs, it can strain the heart too. From healthy diet tweaks to smarter outdoor routines, here are 5 daily habits that may help shield your heart from pollution’s hidden dangers.

August 14, 2025 / 14:12 IST
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Heart attack causes: Studies show that breathing air with high PM2.5 levels can increase the risk of cardiovascular events within hours to days (Image: Pexels)

Heart attacks and strokes are rising across India’s cities at ages once considered too young. While smoking, diet, and genetics remain major drivers, pollution is emerging as an invisible yet deadly culprit.

Pollution is a silent risk factor for heart disease, says Dr Kiran Bandri, Interventional Cardiologist, Apollo Hospitals, Seshadripuram. “Fine particles in polluted air don’t just stay in the lungs. They enter the bloodstream, triggering inflammation, oxidative stress, and higher blood pressure, all harmful to the heart. The damage is gradual, often unnoticed until a major event occurs. Nevertheless, with consistent, thoughtful habits, it’s possible to lower your daily exposure and protect your heart’s long-term health," Dr Bandri explains.

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Studies show that breathing air with high PM2.5 levels can increase the risk of cardiovascular events within hours to days. The stress it creates isn’t unlike what the heart experiences during illness or extreme physical strain. “The heart is a remarkably resilient organ, but it’s not designed to battle constant exposure to polluted air without support. Which is why everyday protection is vital, not just during smog season, but year-round,” the expert warns.

Also read | Symptoms of heart attack: Chest pain, nausea, sweating are warning signs, expert tips to prevent