One e-cigarette with nicotine leads to adrenaline changes in nonsmokers' hearts


Electronic cigarettes have been touted as both a safer alternative for smokers and as an effective way for people to gradually quit smoking altogether. But a new study shows that nicotine inhaled from e-cigarettes can greatly increase a person’s heart rate and aggravate the sympathetic nervous system.

Daily e-cigarette users had highest rates of quitting smoking


Among US adults who were established smokers in the past five years, those who use e-cigarettes daily were significantly more likely to have quit cigarettes compared to those who have never tried e-cigarettes. Over half of daily e-cigarette users had quit smoking in the past five years, compared to 28 percent who had never tried e-cigarettes. This is one of the first studies to reveal the patterns of cessation prevalence among e-cigarette users.