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Three hand smoke, can you stand it?

2020/11/05|本站原创|Knowledge

Since Cochrane, an international authoritative organization of evidence-based medicine, pointed out in the latest research review published on October 15: "e-cigarette has the effect of smoking cessation, and the effect is better than nicotine replacement therapy." After that, the topic of reducing the harm of e-cigarettes has risen again.

Three hand smoke, can you stand it

However, this report only focuses on the smoking cessation effect of e-cigarettes, and does not make a deep study on the harm of e-cigarettes compared with traditional cigarettes. As a result, many anti-e-cigarettes people still cling to the weakness of "cigarettes" and constantly emphasize the harm brought by e-cigarettes.

In particular, attacks on e-cigarettes contain "second-hand smoke hazards".

But is it true that e-cigarettes are harmful to second-hand smoke, as these opponents say?

In fact, e-cigarette not only does not have the second-hand smoke hazard of traditional cigarette combustion, but also does not exist even the "hidden second-hand smoke" hazard which has been emphasized and concerned by the World Health Organization (who) in recent years.

The harm of second-hand smoke has been talked about rotten, but in view of the recent addition of many new readers and new partners in the industry, we will help you review the hazards of second-hand smoke.

Second hand smoke, also known as passive smoking and environmental tobacco smoke, refers to the mixed smoke released from the burning end of cigarettes or other tobacco products and the exhaled tobacco smoke of smokers.

Second hand smoke

Some studies have pointed out that there are more than 4000 kinds of harmful chemicals and dozens of carcinogens in second-hand smoke, such as tar, ammonia, nicotine, suspended particulates, PM2.5, polonium-210, etc.

Second hand smoke is not only the most widespread and serious indoor air pollution, but also a major global cause of death. It is the harm of combustible tobacco products to the environment after burning.

And let's look at e-cigarettes.

First of all, any conclusion should be based on scientific evidence. The statement without scientific evidence is not only untrustworthy, but also a rumor.

As for whether there is second-hand smoke in e-cigarettes, authoritative public health institutions have already drawn a conclusion for a long time. The latest one is the research results released by the Centers for Disease Control and Prevention (CDC) in July this year

According to the latest paper released by researchers from the Centers for Disease Control and prevention in the United States on July 27, the content of NNAL, the metabolite of tobacco specific nitrosamines (TSNAs), in the urine of e-cigarette users is extremely low, only 2.2% of that of cigarette users, and 0.6% of users of smokeless tobacco (snuff, chewing tobacco, etc.).

The research results once again prove that the harm of e-cigarette is much lower than that of traditional tobacco, and there is no second-hand smoke problem of traditional tobacco.

The study lasted for seven years and began to collect epidemiological data on tobacco use behavior from 2013, including use patterns, attitudes, habits and health effects, and to assess the impact of relevant tobacco regulatory policies of the food and Drug Administration (FDA).

The research results once again prove that the harm of e-cigarette is much lower than that of traditional tobacco

NNAL is a metabolite of nitrosamines produced by human body, which is excreted by urine. In short, people inhale nitrosamines by using tobacco products or secondhand smoke, and then excrete the metabolite NNAL in urine.

The results showed that the average concentration of NNAL in the urine of smokeless tobacco users was 993.3 ng / g creatinine, that of cigarette users was 285.4 ng / g creatinine, and that of electronic cigarette users was 6.3 ng / g creatinine. That is to say, the content of NNAL in the urine of e-cigarette users was only 2.2% of that of cigarette users.

This study is not the first time that CDC has published evidence that e-cigarettes do not have second-hand smoke problems of traditional tobacco.

As early as 2014, CDC researchers published a research paper on VOCs (volatile organic compounds) in the smoke of traditional tobacco and e-cigarette, which showed that the content of VOCs metabolite VOCs in the urine of e-cigarette users was similar to that of people who never smoked.

The concentration of vocms in smokers was significantly higher than that in e-cigarette users, smokeless tobacco users and never smokers. Vocms are metabolites of VOCs produced by human body, which are also excreted through urine.

There are a lot of studies on second-hand smoke, but there should be no more authoritative institution than CDC. Therefore, as for the term "e-cigarette contains second-hand smoke hazards", I believe that the partners have already known it!

Next, I would like to talk about the hidden danger of secondhand smoke, also known as the "three hand smoke".

Three hand smoke refers to the remnants of smoked smoke, such as clothes, walls, carpets, furniture, and hair and skin. Also known as involuntary smoking, is a passive way of smoking.

So far, there are many smokers and even non smokers in China who mistakenly believe that as long as they are far away from smoking or secondhand smoke, they can escape the harm caused by combustible tobacco, but in fact, life is still exposed to the danger of three hand smoke.

There was a very classic question and answer on the Internet before: "the smell of smoking on adults is very big. Does it affect holding children?"

The doctor's answer is: Yes!

Compared with drinking, smoking has a greater impact on people around them, because drinking affects mainly the mental state of drinkers themselves, while the second-hand smoke and three hand smoke produced by smoking can also cause harm to others.

There is more clear evidence that children exposed to three hand smoke can increase the risk of asthma, bronchiolitis, otitis media, and even childhood cancer.

In addition, sleeping in the same bed with smokers also increases the risk of sudden infant death syndrome.

Cigarette exposure not only comes from second-hand smoke, but also from harmful substances left on hands, clothes, skin and hair after smoking, including nicotine, nitrosamines and polycyclic aromatic hydrocarbons. Children and smokers close contact, inhalation or touch after eating imported, will produce harm.

However, the smoke of e-cigarette is different from that of traditional cigarette. Although the oil of e-cigarette also contains nicotine, because there is no tar added in the oil and it does not burn, the smoke of e-cigarette will not attach the residue to clothes like cigarette.

In 2017, the Canadian research team conducted an experiment. When e-cigarettes were used in confined spaces, the nicotine content in the smoke could last up to 72 hours, and the content was lower than that in second-hand smoke.

In addition, because the smoke particles of e-cigarettes are similar to steam, it is more difficult for the smoke of e-cigarettes to adhere to the skin, hair or clothes than that of traditional cigarettes. This is why some people in the family smoke, even if they quit smoking, after a long time, the smell of cigarettes still exists in the home, but e-cigarettes do not.

Generally speaking, although electronic cigarette is also "smoke", but the danger of second-hand smoke or three hand smoke is far lower than that of traditional flammable cigarettes.

This is why the British Department of public health (PHE) dare to declare: "the harm of e-cigarettes is far less than 95% of traditional tobacco, and encourage smokers to switch to e-cigarettes." Because a lot of scientific evidence has confirmed that the harm of e-cigarette is relatively low.

Any conclusion needs evidence and a lot of research support. If they are both "smoke", they must be labeled with false rumors of harm and reject new things, which is even more unfair to those who really need to get rid of the harm of smoke.

Of course, also please non-smokers and teenagers, children automatically away from electronic cigarettes!

Don't touch the bottom line because of temporary freshness or fun. Even if the harm of e-cigarette is low, fresh air is still the best choice for human body when it does not smoke.

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