On separate days, participants will undergo 3 different exposures: an acute e-cigarette exposure, an acute tobacco cigarette exposure, and a sham (empty e-cigarette) control . Before and after the acute exposure, participants will have blood drawn for inflammation/oxidative stress markers and undergo a 5-minute ECG recording.
Randomized controlled trial of acute use of electronic cigarette or tobacco cigarette on parameters of ventricular repolarization and inflammation/oxidative stress.