"Don't you say that nicotine is not cancerous at all? Why did I diagnose lung cancer!" When the doctor told Uncle Zhang that cancer was diagnosed, he was stunned. Smoking was harmful to health. It was a "big scam". Nicotine was not cancerous at all? Is it science or rumor? It took a long time to recover from my senses.
Uncle Zhang is an old smoker. He clearly remembers a previous article saying that nicotine has nothing to do with carcinogenicity. has also been certified by the US FDA , so smoking is harmful to health is a lie.
Uncle Zhang saw the article, and so he became more unscrupulous in smoking. It became the norm for to smoke a pack every day.
Until one month ago, Uncle Zhang always felt discomfort in his throat, and his throat seemed to have a foreign object stuck, and he couldn't swallow it and could not vomit it. The treatment of in the community hospital did not improve. Not long after, Uncle Zhang's condition worsened, and his voice gradually became hoarse, and he often coughed with .
had no choice but to go to the local people's hospital for examination. After checking, I didn't expect that it was already advanced lung cancer . Because the optimal surgical treatment time is missed, life can only be extended through chemotherapy.
It can be said that this pseudo-popular science article indirectly "harm" Uncle Zhang. Nicotine is indeed not a carcinogen, but the evidence of smoking causing cancer is conclusive. What is going on?
1. Cold knowledge: nicotine is not a carcinogen
In the list of carcinogens published by WHO , tobacco is listed as a class 1 carcinogen, but nicotine cannot even be considered a class 4 carcinogen with the lowest level.
Generally speaking, we believe that smoking is harmful to health and mainly regard nicotine as the culprit.
In fact, in 2014, U.S. Centers for Disease Control and Prevention pointed out that nicotine does not cause cancer , and there is no evidence to indicate the direct causal relationship between nicotine and cancer. Moreover, many studies have shown that the main harm in tobacco comes from toxic substances such as tar produced during combustion, carbon monoxide and .
Moreover, nicotine is not only found in tobacco. Some , such as potatoes, tomatoes, etc. that we often eat, also contain nicotine, but the content is weak and will not affect the human body. In addition, nicotine has also been found to have unexpected surprises in treating depression , Parkinson and other diseases.
However, it is important to face it, on the one hand is addictive, , which makes it difficult for people to restrain themselves from smoking. Smoking causes cancer is absolutely true, so at this point, nicotine is also an "accomplice".
On the other hand, nicotine is a toxic substance. Naval General Hospital Wang Chao once pointed out that inhales 50-70 mg of nicotine in a large amount at a time. is equivalent to the nicotine content of 40-60 cigarettes, which may cause death.
Although the nicotine content consumed by smoking is difficult to reach the level of acute poisoning and is easily metabolized, you still need to be vigilant. In addition, do not let nicotine exposure in pregnant women and children . It has been found that nicotine can affect the health of the fetus, such as leading to premature birth or stillbirth.
2. Nicotine does not cause cancer, is smoking harmful to health? The "culprit" of smoking causes cancer is their pseudo-popular science article mentioned by Uncle Zhang, Xiao Miao also found the original text. Now we know that nicotine is not a carcinogen, but the article uses this to point out the view that "smoking is harmful to health and is a scam", and is obviously a sensationalist.
The US FDA not only did not call for the ease of smoking, but also formulated a stricter tobacco regulatory plan. US FDA Director Scott Gottlieb said , the direct cause of cigarette diseases and death is the compounds produced in the burning of cigarettes.
There are more than 7,000 chemical substances in tobacco smoke, includes acetone , ammonia, arsenic, butane cadmium, carbon monoxide, hydrogen cyanide and other , some of which are already known or possible carcinogens.
The World Health Organization released the global disease status assessment report pointed out that more than 5 million people worldwide die of cigarettes every year, 36% of these people die of respiratory infection , 22% die of cancer, 10% die of cardiovascular disease, and 7% die of tuberculosis .
Smoking is the main culprit of cancer. Medicine has confirmed that smoking will increase the risk of lung cancer . The more smoking, the higher the risk . In addition, it will also harm other organs of the body and increase the risk of cancer in multiple parts of the esophagus, stomach, liver, kidney, bladder, etc.
" China Smoking Hazards of Health Report " shows that on average, one smoker dies every 6 seconds in the world, and about 600,000 non-smokers also lose their lives due to second-hand smoke exposure.
These data intuitively tell us that we should not believe that smoking is harmless, as smoking harms others and yourself.
3. Why do some people smoke but cannot get lung cancer?
In life, you always hear such remarks: Someone has smoked cigarettes for a lifetime and still lives to the age of 90. How can people smoke smoke live longer than they don’t smoke... These words sound quite reasonable, so what’s going on?
First of all, Xiao Miao reminds that this is a very common "illusion", that is, " Survivor deviation " . The channels for our access to information often come from people around us. These people who have been smoking all their lives are just survivors. There are many people who die prematurely because of smoking. We cannot see it, but we cannot think that it has not happened.
In addition, gene may also help. A study by the University of California found that among people who smoke but live long, there were 215 single nucleotide polymorphisms in their genomes . People with this gene have stronger ability to repair cell damage, so they may be more resistant to the damage caused by smoking.
Health problems caused by smoking often do not appear in the short term, and the adverse effects on people have lag , which can easily underestimate its harm. However, once related diseases occur, most of them are difficult to completely cure, which seriously affects the quality of life.
So, "You will be healthy after smoking your whole life" and "safe smoking amount" do not exist. No one can guarantee that they are the lucky ones. If you want to be healthy, you should quit smoking as soon as possible.
4. E-cigarettes are not addictive and can help quit smoking. Is it true?
In recent years, e-cigarettes have been known to the public by the title of "not addictive, can quit smoking". Many people have tried to quit smoking with e-cigarettes, or think e-cigarettes are harmless and directly smoke e-cigarettes. Are e-cigarettes really that excellent?
E-cigarettes atomize the e-liquid by electronic heating. There is no tar in it, but it still contains nicotine , so e-cigarettes can also make people addicted and will not help quit smoking.
In addition, 90% of the components of the smoke of e-cigarettes are propylene glycol , glycerol . Propylene glycol is a safe food additive, but the US FDA once said: It is edible but does not mean it can be inhaled. What impact does long-term repeated inhalation have on the body?
Moreover, the electronic cigarette technology is immature, and the device may explode during the smoking process, or the product produced may have an excessive content or toxic substances. Therefore, it is not recommended to smoke e-cigarettes or rely on electronic cigarettes to quit smoking.
If you want to quit smoking, you still have to rely on yourself and seek help from to quit smoking clinic .
Once you start quitting smoking, the first thing you need to resist is the strong "withdrawal symptoms", especially the first 14 days of the beginning. At this time, you need to keep psychological hints, go out for a walk, chat with friends and relatives, etc., to divert your attention.
Tell your relatives and friends that you are quitting smoking and seeking their supervision and help. When quitting smoking, you also have to resist the temptation of relapse. Don’t be lucky with the “it’s okay to take a puff or two” mentality, stay away from the smoking environment and the smoking crowd.
If withdrawal reaction is obvious, or it is difficult to quit smoking successfully, go to the smoking cessation clinic in time to obtain guidance from professional doctors, which can improve the success rate. In short, smoking is harmful to health. As long as you make up your mind, it will not be too late to start quitting smoking. #Good Doctor Escorts Health# Reference: [1]FDA announces that nicotine is not cancerous, and smoking is not harmful to health? Rumors | Be serious about medicine. Be comprehensive about truth-Tencent News.2017-08-11 [2] Zou Xiaonong. Smoking is the most important pathogenic factor for lung cancer [J]. Anti-cancer Window, 2014:1. [3] Someone still lives to 90 after smoking cigarettes all their lives? This article helps you to retaliate. Life Times. 2022-05-31. [4] To be honest, can e-cigarettes still help quit smoking if they are not addicted? The truth is here. Popular Science China.2018-09-26. Reproduction of
