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Smoking is a major risk factor for various cancers, including lung, bladder, kidney, and cervical cancer. Smoking is the leading cause of preventable death worldwide and is responsible for an estimated 6 million deaths per year, with cancer being one of the leading causes of these deaths.
When a person smokes, they inhale more than 7,000 chemicals, many of which are toxic and can cause cancer. The smoke from cigarettes contains carcinogens, which are substances that can cause cancer. These carcinogens can damage DNA in cells, leading to mutations that can eventually develop into cancer.
Lung cancer is the most common cancer caused by smoking and is responsible for most cancer deaths in smokers. The risk of lung cancer increases with the number of cigarettes smoked per day, and the years a person has smoked. Smokers are also at a higher risk of developing other types of cancer, such as oral, throat, oesophagus, stomach, pancreas, liver, kidney, bladder and cervix.
Smoking also increases the risk of heart disease, stroke, and chronic obstructive pulmonary disease (COPD). Additionally, exposure to secondhand smoke, the smoke exhaled by a smoker and the smoke that comes from the burning end of a cigarette, can also increase the risk of cancer and other health problems in non-smokers.
Quitting smoking is the best thing a person can do for their health. The risk of cancer and other smoking-related diseases decreases once a person stops smoking. After quitting, the risk of lung cancer decreases and eventually becomes similar to that of a non-smoker. The risk of other cancers also decreases, but the risk does not return to that of a non-smoker for some cancers.
Smoking is a significant risk factor for cancer and other diseases. It is the leading cause of preventable death worldwide. Quitting smoking is the best way to reduce cancer risk and other smoking-related illnesses. If you are a smoker, talk to your doctor about resources and methods to help you quit.
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