Lung cancer risk reduced by 57% compared to quitting smoking after age 50
Entered 2024.02.08 20:00 Entered 2024.02.08 20:00 Modified 2024.02.08 20:06 Views 49
Quitting smoking before age 50 was found to reduce the risk of lung cancer by 57% compared to quitting smoking after age 50. [사진= 게티이미지뱅크]Cigarette smoke increases the risk of cancer because the toxic substances in cigarette smoke weaken the body’s immune system, making it more difficult to kill cancer cells. This is why you should quit smoking. However, as with all things, the sooner you quit smoking, the better.
A study published in JAMA Network Open found that quitting smoking before age 50 reduced the risk of lung cancer by 57% compared to quitting smoking after age 50.
Researchers followed 2.97 million people aged 30 or older who received two or more consecutive health checkups at the Korea National Health Insurance Corporation in 2002 for an average of nearly 13 years until 2019. When we used cancer registration data to check if we had cancer, we found 197,000 cancer patients.
Studies have shown that cancer risk increases for about seven years after quitting smoking. It was presumed that this was because smoking had already caused significant damage. Compared to people who did not quit smoking, people who completely quit smoking had a 17% lower risk of developing all types of cancer.
Cancer risk remained high for 10 years after quitting smoking, but after 15 years or more, the risk was halved. The incidence of lung cancer decreased first, three years earlier than other cancers. Quitting smoking reduced the risk of lung cancer by 42%, liver cancer by 27%, stomach cancer by 14%, and colon cancer by 20% compared to continuing smoking.
Cigarette smoking is a major cause of lung cancer. According to the charity Cancer Research, smoking releases more than 5,000 chemicals. These harmful chemicals enter the lungs and damage DNA. Damage to the DNA, which is responsible for how cells grow and behave, causes cells to behave in unexpected ways. Accumulation of DNA damage over time can lead to cancer. Other chemicals make it more difficult for cells to repair DNA damage that can cause cancer.
A 2004 study of 50 years of British doctors found that more than 90% of the risk of lung cancer caused by smoking could be avoided if smokers quit smoking before the age of 30.
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2024-02-08 11:01:02
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