Lung cancer affects non-smokers as well: research

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Lung Cancer: Lungs Most cancer patients are smokers. But, according to a new study by the Francis Crick Institute in London, air pollution can also cause this cancer. Smoking has no role in this. Contaminated air in the environment can increase the risk of mortality from several types of cancer, not just lung cancer.

Which particulates of air are harmful?

Particulate matter (PM) present in the air is no less than a poison for the human lungs. According to scientists, particles of PM 2.5 can cause cancer. These are particles present in the air, whose size is 2.5 micrometers or less. These can also lead to premature death.

According to WHO- PM 2.5 particles can enter your lungs and flow into your blood. This puts both the heart and the brain at risk. They can also cause brain stroke and heart attack.

How is air pollution causing cancer?

Researchers said that over time our DNA gets damaged. The PM 2.5 particle is capable of rejuvenating the old and worn out cells of the body. Inflammation occurs in these cells, due to which the lungs try to repair them. However, by the age of 50, one in every 6 lakh cells is likely to become cancerous. It is also activated by pollution, which can later take the form of lung cancer.

Success in preventing cancer in mice

This research is big because scientists have not only linked cancer to air pollution but also used a drug to prevent it. They used this drug on mice and prevented cancer cells from becoming active in their bodies. Researcher Dr. Emilia Lim says that people who do not smoke at all but still become victims of lung cancer, they do not understand why this has happened.

99% of people are living in polluted places

Dr Lim said that 99% of the world’s population lives in places where the World Health Organization (WHO) guidelines on air pollution are not followed. This means that 797 crore people on earth are breathing poisonous air. For these figures, the WHO team monitored the air quality of more than 6 thousand cities in 117 countries. This problem is happening most of all in low and middle income countries.


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