What causes lung cancer

The causes of lung cancer mainly include genetic factors and non-genetic factors. Non-genetic factors are more common, such as occupational exposure and environmental pollution.

1. Occupational exposure and environmental pollution

Many people may not know that long-term exposure to radioactive substances or chemical pollutants in certain occupational environments increases the risk of lung cancer. For example, miners, construction workers, and chemical plant employees may be exposed to harmful substances such as asbestos and radon gas due to their work. As we often say, "If you walk by the river, you will get your feet wet." Long-term exposure to these environments may threaten lung health.

2. Air pollution

Air pollution in modern cities is also one of the important factors for lung cancer. Long-term inhalation of pollutants such as particulate matter, sulfur dioxide, and nitrogen oxides in the air can cause damage to the lungs. Just like the poor quality of the air we inhale every day, the lungs are like a filter, which will inevitably become "blocked" over time.

3. Smoking

Smoking is one of the main causes of lung cancer. Whether you smoke actively or inhale secondhand smoke passively, it may increase the risk of disease. Nicotine, tar and other harmful substances in cigarettes can directly damage lung cells. Think about it, if you inhale so many harmful substances every day, how can your lungs not be "sick"?

4. Genetic factors

Although most lung cancer patients do not have an obvious family genetic background, studies have found that people with a family history of lung cancer have a relatively higher risk of developing the disease. This is like an "invisible bomb" in the gene that may be "detonated" under certain conditions.

5. Diet and lifestyle

Improper diet and unhealthy lifestyle are also potential factors that induce lung cancer. Unbalanced nutrition and lack of exercise can affect the body's immune system, making it more susceptible to cancer. Just like a car, if it is not maintained regularly, its parts are prone to problems.

Advice and Prevention

To reduce the risk of lung cancer, we can start from the following aspects:

Through these methods, we can effectively reduce the risk of lung cancer and protect our lung health. I hope everyone can pay attention and take action to keep healthy every day.