Patients who have never smoked now are good for a larger number of lung cancer cases than those with a history of smoking.
International scientists discovered that the most dominant form of the disease is now adenocarcinoma-a type of lung cancer that forms in the lining of the organs and is usually found in non-smokers.
It has overtaken other types of lung cancer, such as squamous cell carcinoma and small cell carcinoma that is usually caused by the carcinogenic chemicals in cigarettes such as Tar.
The experts behind the research, from China and France, believe Increasing exposure to air pollution can be responsible.
They estimate that about a third of the 600,000 adenocarcinoma cases that are diagnosed worldwide every year could be attributed to air pollution.
The scientists even said a small amount of exposure to Pollution due to traffic and burning fossil fuels can increase the risk of adenocarcinoma by more than 50 percent.
The experts also noted that according to reports from 2019, 99 percent of the world's population lives in areas where air quality does not meet the standards of the World Health Organization (WHO).
By investigating trends of lung cancer around the world, they found the risk of air pollution-related adenocarcinoma particularly high in China, which is famous for its cities covered with smog.
Patients who have never smoked before now form an increasing number of global cases of lung cancer, and air pollution can be fault, a global analysis suggests
Although men were still responsible for most cases of lung cancer, the authors noted that adenocarcinoma occurred more often in women.
The experts suggested that this can be due to increased exposure to pollution caused by inner cooking. In countries such as China, women are often exposed to the effects of solid cooking fuels, including coal.
They concluded that as the smoking percentages decrease, and investigates how lung cancer arises with never-smokers is becoming increasingly important.
Only about a fifth adult worldwide now use tobacco products such as cigarettes, compared to a third in 2020 according to Who Schat.
The researchers called for further research to investigate exactly how air pollution can cause changes in the cells of the lungs that become cancer.
Some experts theoretizing that microscopic pollution particles come in the lungs where they damage the DNA of cells, which leads to the rapid distribution of cells that ensure that cancer -like tumors form.
Lung cancer kills around 35,000 British every year, about four every hour. However, the speeds of the disease have fallen by around 9 percent in the population since the 90s as a whole
Others suggest that it can be due to the body's reaction to pollution particles, such as inflammation, who activate sleeping mutations in cells that cause the disease.
The study, published in the Lancet breathing medicine, has some restrictions that the authors recognized.
Firstly, their data was collected from national cancer registers, which means that there may be some inconsistencies in lung cancer diagnoses between different countries.
Their findings come when the UK has seen its own rise in lung cancer cases in young women and girls.
Figures from Cancer Research UK (cruk) show that in recent decades cases of the disease have risen by 130 percent in women younger than 24 years old.
This makes them the fastest growing group that runs the risk of the disease, although more than 70 is still most likely diagnosed.
The rates in men of the same age, on the other hand, are hardly stimulated from the early 90s, for reasons that are simply unknown, according to Medici.
Cancer experts have warned about considering lung cancer as 'the disease of an old person' – as was seen earlier.
Young women were also encouraged not to dismiss a persistent cough – the most important symptom of the disease – during this time of the year, when a cold is widespread.
Experts told MailOnline one of the reasons for the alarm, and as identified in the recent study, is that many of these cases are to women who have never smoked.
Cancer experts have now warned about considering lung cancer as 'the disease of an old person' – as was seen earlier. Young women were also encouraged not to dismiss a persistent cough – the most important symptom of the disease – during this time of the year, when a cold connects widely
This means that it is almost impossible for doctors to give advice on the younger women can minimize their risk.
Lung cancer kills around 35,000 patients in Great Britain every year, about four every hour, making it the biggest cause of the death of cancer in the UK.
Symptoms of lung cancer include a persistent cough that does not disappear after three weeks, repeated breast infections, blood on coughing during breathing, persistent shortness of breath and fatigue and unexpected weight loss.
Other, more unusual signs of lung cancer are change in the appearance of your fingers, difficulty or pain swallowing, squeaky breathing, changes in your voice and swelling of the face or neck.
Everyone with one of these signs is encouraged to see his doctor.
