Why say e-cigarettes contain 99% fewer toxic substances than cigarettes?
At first glance, you might wonder why we are so confident in this claim. Let's approach it from a scientific perspective and present the facts.
The BBC conducted a series of medical experiments on e-cigarettes and related products based on rigorous, systematic, and rational thinking.
The research team decided to test whether e-cigarettes could effectively help people quit smoking. To this end, they recruited 26 smokers who shared a common trait:
Each of them smoked at least 20 cigarettes a day, a habit that is difficult to break. The study showed that the success rate for people trying to quit smoking without assistance is only 4%.
These smokers participated in a fascinating experiment to explore the effects of e-cigarettes on our health.
The experiment was conducted by behavioral scientists Paul Aveyard from the University of Oxford and Peter Hajek from Queen Mary University of London.

01
Comparison of the effectiveness of e-cigarettes and traditional smoking cessation methods
Volunteers were divided into four groups:
The first group continued to smoke regularly; the second group used difficult methods to quit smoking; the third group used nicotine patches for treatment; and the fourth group used e-cigarettes to help quit smoking.
Before the experiment, all participants underwent detailed health checks, including measurements of carbon monoxide levels in their bodies, heart rates, etc. After four weeks, the volunteers would undergo the same tests to see if any changes occurred.
After four weeks, members of the first and second groups reported that their cravings for cigarettes remained strong, with only 2 out of 7 successfully quitting; in the third group, 7 out of 8 in the nicotine replacement therapy group successfully quit; and in the fourth group, 7 out of 8 in the e-cigarette group successfully quit.
This indicates that e-cigarettes are significantly more effective than forced quitting, similar to nicotine replacement therapy.
All participants also repeated the physical tests from four weeks prior, and the carbon monoxide levels in the lungs of those who quit smoking were much lower than four weeks ago.
Members of the e-cigarette and nicotine replacement groups were still consuming nicotine, but their nicotine levels were only half of what they were when they were smoking.
In the first and second groups, the two volunteers who were forced to quit had nicotine levels lower than a quarter of their previous levels.
02
Why do e-cigarettes contain 99% fewer toxins than cigarettes?
Many people question whether e-cigarettes, as a substitute for cigarettes, are truly safe.
Dr. Mark Travers from the Roswell Park Cancer Institute has been conducting research on air quality in public spaces, and his experiments provide important data for smoking bans. Travers' sensitive air detection equipment can accurately measure the substances produced when volunteers smoke cigarettes and e-cigarettes in a room.
The results are surprising: e-cigarettes release 99% fewer substances than cigarettes! This is because harmful substances are produced during the combustion process. E-cigarettes produce nicotine vapor without combustion, which does not generate large amounts of harmful substances.
Additionally, scientists have conducted experiments on the effects of cigarettes and e-cigarettes on human cells, testing their impact on injured cells.
Normal cells automatically heal after injury. The results showed that e-cigarettes had almost no effect on cell healing, while cigarettes caused cells to turn black and become unable to heal, which can easily lead to vascular diseases in the body.
03
So, do e-cigarettes cause addiction?
Many people are puzzled: cigarette addiction is due to nicotine, and e-cigarettes also contain nicotine. Is switching to e-cigarettes just changing one addiction for another?
To test whether e-cigarettes can cause addiction, a non-smoker host personally experienced using e-cigarettes. Psychologist and addiction expert Lynn Dawkins created a vaping schedule for him, allowing him to vape every half hour or hour for a month.
After a month of experimentation, the host showed no signs of addiction to e-cigarettes. Other surveys have also found this phenomenon.
Among e-cigarette users aged 17-18 in the UK, most show no signs of addiction. They may enjoy the novelty of e-cigarettes but do not use them frequently.
The film concludes by stating: if e-cigarettes can capture a share of the multi-billion dollar tobacco industry, they may be the most significant invention for public health this century. If traditional cigarettes are geometrically phased out until completely quit, the beneficiaries will be numerous.
Researchers point out: "Almost half of smokers have never tried e-cigarettes because they are cautious about the risk factors associated with them.
However, an independent review of the latest evidence published by public health indicates that at least 20,000 people quit smoking each year with the help of e-cigarettes.
When smoking, people inhale 7,000 components of smoke, 70 of which are known to be carcinogenic. In e-cigarettes, harmful components are either absent or negligible. #p#分页标题#e#



