<|begin_of_text|><|begin_of_text|><|begin_of_text|>The increasing popularity of e-cigarettes among American adults is linked to the significant decrease in the number of people who smoke, according to new research published by the British Medical Journal.
The researchers, from the University of California, based their findings on five<wm> years of nationwide surveys that measured nicotine replacement therapy (NRT) usage among the US population. They analyzed data that revealed the widespread adoption of NRT among American adults, with one-third to two-thirds of the sample having used NRT at least once in the five-year period.
What's going on behind this trend?
According to the research, people of any age who smoke tend to be heavier smokers, and therefore, have less nicotine in their blood when consuming NRT than heavy smokers. These users</wm>, the researchers explained, had lower levels of nicotine in their blood, resulting in reduced cravings for a