Why the more you smoke, the higher your risk of cancer? Expert: Quit smoking at this age, life will be extended by 10 years

Smoking is a habit of many people. After burning, cigarettes release harmful substances and cause damage to the body. The “China Smoking Hazards to Health Report 2020” shows that the number of smokers in my country has exceeded the 300 million mark.

Globally, my country ranks first in tobacco production and number of smokers. The “main force” of the democracy, the smoking rate is over 50%.

Many people know that smoking is harmful to health , but still can’t quit smoking. The main reason is that smoking is addictive, and it makes people gradually inseparable.

Why is smoking addictive?

The cause of smoking addiction is that tobacco contains nicotine, which acts on the nicotine receptors in the brain to produce corresponding chemical substances, leading to pleasant feelings in the human body , while generating dependencies.

Now the medical field has Classify tobacco dependence as a chronic disease, not just a bad habit, because tobacco can cause changes in the nicotine receptors in the brain, the changes do exist, and it is difficult to fully recover, so once you become addicted to smoking, you will face the difficulty of quitting smoking question.

Many patients who quit smoking also relapse, which is the characteristic of smoking as an addictive disease. Tobacco dependence is the same as drug dependence and alcohol dependence. It is difficult to quit. Don’t be nervous if you quit once and for all. You can also quit repeatedly. Try not to relapse. Even if you relapse, quit smoking as soon as possible. of patients will quit smoking for life.

Why The more you smoke, the higher your risk of cancer?

When it comes to the number of people who smoke, the first reaction is to associate cigarettes with lung cancer. Because many long-lived people around me have been smoking all their lives, but they are still very healthy.

Whether a person gets cancer or not involves probability issues. “Lottery Theory” is very vivid. We compare cancer to “winning the lottery.” Of course, smoking does not necessarily cause lung cancer, but the more you smoke, the greater the chance of lung cancer.

Middle-aged and elderly, smoking, Alcoholism and staying up late will cause serious cancerous changes in the cells in the body, and the consequences will be disastrous. Therefore, everyone must stay away from the temptation of cigarettes in daily life.

100 smokers live to the age of 75, how many people will eventually get lung cancer?

Smoking increases the risk of lung cancer. What is the probability? A study published in the British Journal of Cancer has the answer. This study well shows the mortality rate of male lung cancer in different groups, as shown in the following figure:

Among them, the conclusion is very clear: 75 years old is the “critical point”. If there is no exposure to tobacco, the chance of dying from lung cancer is only 0.3%; but if you are exposed to tobacco, you will get cancer The risk will instantly increase to 50 times.

It is also 75 years old, if the number of cigarettes > 5 cigarettes / day , the probability of dying from lung cancer is 1/4. The earlier you quit smoking, the lower your risk of dying from lung cancer. If you can quit before the age of 30, the risk of dying from lung cancer is only less than 2%.

Smoking increases the risk of lung cancer, long-term exposure to second-hand smoke can also lead to serious lung lesions, so quitting smoking as soon as possible is more helpful to maintain Good health also helps to prolong life.

Expert: Quit smoking at this age, live 10 years longer

“The damage is reversible” This is very good news for old smokers, because many people have not quit smoking, mainly because they feel that there is no benefit after quitting smoking, but some people have physical diseases because of quitting smoking.

The harm may be established when the body still has a strong recovery ability, and there is enough time for the body to Repair, if the effect of reversibility of smoking harm is greatly reduced in the case of shorter lifespan and very poor physical function.

New England Journal of Medicine A research report was once published. Experts in the United States conducted a survey on 200,000 smokers and ex-smokers. The results showed that as long as smokers quit smoking before the age of 34, 44, and 54, their life expectancy can be extended respectively. 10 years, 9 years, 6 years.

Simply speaking, if you exceed any age, the cost is to shorten your life span. The best age to quit smoking is 34 years old Before, in fact, for every smoker to quit smoking, the earlier the age, the better, because the body’s recovery ability is faster when young, and it helps to reverse the damage caused by smoking to the body.

Quit smoking What are the benefits?

1. 20 minutes after quitting smoking: With the reduction of nicotine content in the body after quitting smoking, the circulatory system of the whole body is improved, especially the hands and feet department.

2. 8 hours after quitting smoking: the oxygen content in the blood reaches the level when not smoking, and at the same time The carbon monoxide content is reduced to half.

3. 24 hours after quitting smoking: the benefits of quitting smoking on the heart, blood pressure and blood system will appear come out. One year after quitting smoking, the excess risk of coronary heart disease is reduced by half compared with that of continuing smokers.

4. 48 hours after quitting smoking: the nicotine is completely eliminated, and you will find that your sense of taste and smell has begun to improve.

5. 72 hours after quitting smoking: Breathing becomes easier, and you will feel that your overall mental state has improved.

6. After 3-9 months of quitting smoking: any breathing problems have improved, and the efficiency of the lungs has increased by 10%.

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7. Five years after quitting smoking: the risk of stroke is reduced to that of never smokers level.

8. After 10 years of quitting smoking: the chance of developing lung cancer has reached half of that of normal people.

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9. After 15 years of quitting smoking, the risk of coronary heart disease is similar to that of a never-smoker. The overall risk of death returns to the level of a never smoker. It is never too late to quit smoking, preferably before serious health damage occurs.


There is no shortcut to quitting smoking, there must be steps

1. Establish the goal and determination to quit smoking, and raise awareness of the dangers of tobacco; if a person does not have strong willpower, “relapse” occurs during the process of quitting smoking, and the consequences will be more serious .

2. Seek help from professional organizations and departments.

3. The surrounding environment should support smoking cessation, talk with parents, parents, wife, husband , children, relatives, friends, and colleagues, positively tell them to quit smoking;

4. Master skills, such as handing you cigarettes in different environments, the best way is to tell him to quit smoking now, smoking makes his body uncomfortable Yes, clearly refuse to reduce the possibility of relapse. There is no shortcut to quitting smoking. You must put your own efforts, determination, and practical actions into practice.