While the United States was discussing a proposed law to ban e-cigarettes, the United States conducted a study to examine the use of e-cigarettes and cigarettes and their exposure to toxic substances.
In us, 264 adults who smoked daily were recruited from Minneapolis, Minnesota, Columbus, Ohio and Buffalo, New York. Participants were randomly assigned to an eight-week instruction period. They were divided into four groups: randomly using an e-cigarette, completely replacing cigarettes with e-cigarettes, completely replacing cigarettes with nicotine gum or lozenge, and continuing smoking regular brand cigarettes.
Smokers in completely replacing cigarettes with e-cigarettes and completely replacing cigarettes with nicotine gum or lozenge groups showed lower rates of smoking and lower exposure to carbon monoxide, tobacco carcinogens, and other toxicants than smokers in the randomly using e-cigarette groups.
The major carcinogens tar and carbon monoxide are found in cigarettes. Tar can clog the lungs and cause coughing. It also pollutes lung tissue and affects lung function, which is a major cause of mouth, throat and lung cancer. Carbon monoxide blocks circulation and leads to blood buildup, increasing the risk of heart disease and stroke. The e-cigarettes found in the study reduced harmful chemicals more than conventional cigarettes. Give us a different way of reference, we should be more worthy of thinking, whether the benefits of a comprehensive ban on smoking outweigh the disadvantages?