Four kinds of cigarettes were blacklisted.

"How many times have I told you, don’t smoke any more? You have a bad lung. Do you have to wait until you get cancer?"

"Don’t talk nonsense. Look at Grandpa Liu next door. He has smoked all his life. Now he looks better than you in his 90 s!"

Lily hates her father’s smoking. She has advised him not to smoke for several years. Every time she tells him not to smoke, they will have an argument. Father always refutes Lili with some examples of smoking and longevity, and because it is really an example around him, Lili can’t beat him, and she is angry every time.

01

Why do some people smoke all their lives?

Don’t have cancer?

I believe many people have the experience of Lili in the beginning story, urging people around them to quit smoking, but they are accused by the other side of who has not smoked all his life and still lived to be in his 90 s. Undeniably, there are indeed many people in life who have smoked all their lives but live a long life, but smoking will really hurt their lungs. Then why do some people smoke all their lives without getting lung cancer?

This phenomenon is actually a typical survivor bias phenomenon, and we will pay more attention to people who smoke and live longer, and these people are just survivors. More people who died prematurely because of smoking have become silent data.

Then why do some people smoke all their lives without getting cancer?

A study published in Nature Genetics, a subsidiary of the authoritative British medical journal Nature, may tell you the answer. The researchers found the following results:

DNA mutation will gradually accumulate in the lungs with the increase of age and smoking, and the probability of DNA mutation in smokers is significantly higher than that in non-smokers. In other words, smokers are more likely to get cancer than non-smokers.

However, the researchers found that when smoking exceeds a certain critical point, it will trigger the self-protection mechanism in the human body and enter a stable period of DNA mutation. It is this special DNA repair ability that will help smokers resist the risk of lung cancer caused by smoking, which is also the main reason why many smokers do not suffer from lung cancer.

Is it possible to smoke more and fight poison with poison? Liu Zheng, chief physician of colorectal surgery in Cancer Hospital of China Academy of Medical Sciences, said that in theory, as long as you live long enough, smoking will definitely induce health problems. Even if there is no cancer, smoking will make your body scarred, including cardiovascular disease and chronic obstructive pulmonary disease, which may come to you. It is not recommended to use the above research as an excuse for smoking. After all, not everyone can be the "lucky one".

02

Will the lungs come back in vain after quitting smoking?

There are billions of particles and dust in a mouthful of smoke. After the smoke is inhaled into the body, it will enter the lungs, be stuck by the lung mucosa, and then be discharged through ciliary movement. However, the ability of cilia is limited, and when the inhaled smoke is greater than it can bear, it will lead to the impairment of lung cilia function. Particles entering the lungs cannot be removed in time, and with the accumulation of particles in the lungs, the color of the lungs will gradually turn black.

The time of lung blackening is closely related to the amount of smoking and smoking time. If you smoke 20 cigarettes a day, it only takes 3 years to blacken your lungs.

Is it possible for the blackened lungs to come back for nothing after quitting smoking? The answer is impossible. Even after quitting smoking, the blackened lungs are hard to come back in vain, and it is hard to wash them. However, quitting smoking can gradually restore the damaged lung function. One week after quitting smoking, the cilia of the lung can be regenerated, and after three months, the cilia function can be restored to normal, which can effectively remove dead and damaged cells. After quitting smoking for one year, the lung function will be gradually enhanced.

03

Will the risk of cancer decrease after quitting smoking?

According to the statistics of WHO, there are about 1.3 billion smokers in the world in 2020, and the number of deaths caused by smoking is as high as 8 million per year. Forced smoking of second-hand smoke also caused 1.2 million deaths, among which 65,000 children died of second-hand smoke. Igniting a cigarette will release thousands of harmful chemicals, which will increase the risk of many diseases including cancer, cardiovascular diseases and respiratory diseases after inhalation. Since smoking is so harmful, will quitting smoking reduce the risk of cancer for smokers?

The American Lung Association (ALA) points out that it’s never too late to quit smoking. As long as you start quitting smoking, you can benefit your health, even people who are heavy smokers and have smoked for a long time. Studies have found that quitting smoking can bring many health benefits:

Quitting smoking for one year: it can reduce the risk of coronary heart disease sharply, which is about half of that of smokers;

Quit smoking for 5-15 years: the risk of stroke can be reduced to the level of non-smokers;

Quit smoking for 10 years: the risk of lung cancer will be reduced by half, the risk of oral cancer/esophageal cancer/cervical cancer will also be reduced, and the risk of most cancers will be reduced by half in 5-10 years;

Quit smoking for 15 years: the risk of coronary heart disease decreases as for non-smokers.

04

Four kinds of cigarettes have been blacklisted,

Stop smoking.

Many smokers will seek some self-deception ways to avoid quitting smoking. They think that some "flashy" cigarettes will not bring harm to health, but this idea is actually very wrong. These so-called "health-preserving" and "low-harm" new cigarettes are actually no less harmful than cigarettes, so stop smoking!

1. Electronic cigarettes

E-cigarette is an electronic product that makes liquid cigarette oil generate steam through an electronic heater for smokers to inhale. Its main components are nicotine, essence and solvent propylene glycol. Although e-cigarettes do not contain tar, they contain chemicals harmful to the body, such as glycerol, nicotine and essence. Long-term smoking will also make people addicted and bring long-term negative effects to the heart and blood vessels. The World Health Organization clearly shows that e-cigarettes are harmful to public health and need to be strictly controlled.

2. Tea and cigarettes

Tea cigarettes are health cigarettes promoted by many businesses, which are claimed to be pure natural and pollution-free, but the fact is not the case. Shanghai Market Supervision Bureau has conducted spot checks on tea cigarettes on the market and found that although there is no nicotine in them, the tar content of some products is higher than that of ordinary cigarettes, which is obviously inconsistent with its health concept.

Yi Zhu, an associate professor at the College of Food Science and Nutritional Engineering of China Agricultural University, said that the beneficial components of tea are mainly absorbed by the digestive system. When the tea leaves are ignited and inhaled into the lungs, not only are there few beneficial components left, but also a large number of harmful components are produced by burning, so long-term smoking of tea cigarettes is a great threat to health.

3, thin rod smoke

Many people think that thin rod cigarettes are smaller in size, so they are healthier than ordinary cigarettes. Some scholars have specially studied this. The results show that the indoor PM2.5 concentration after burning thin-rod cigarettes is higher than that of ordinary cigarettes, and the concentration of some harmful substances is also higher. Moreover, the nicotine concentration of thin-rod cigarettes is low, so it is difficult for many people who are addicted to smoking thin-rod cigarettes to achieve satisfaction, and they can only get satisfaction by increasing the amount, which will aggravate the harm to their health.

4, bead smoke

Bead popping refers to a capsule-like thing on the cigarette end, which will burst when the temperature reaches a certain level. Many people think that this sound is very decompression, and it will release fruit flavor and taste better at the same time. However, this kind of cigarette will bring no less harm to the body than ordinary cigarettes, and even the spices in it will produce more harmful substances and threaten health after burning.

Tobacco is a kind of carcinogen recognized by the International Agency for Research on Cancer (IARC) of the World Health Organization, and it has definite carcinogenicity. Don’t think that anyone who smokes all his life has no cancer. There are not so many "lucky people". If you still smoke, I advise you to quit as soon as possible. The sooner you quit, the greater the benefit.

Original title: "Remind old smokers: 4 kinds of cigarettes are blacklisted, don’t think it’s good for your health, are there any smokers?"

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