E-Cigarette Aerosol, Conventional Cigarette Smoke, and Myocardial Perfusion

Exclusion Criteria

• •Sub-optimal echocardiography images as determined by the sonographer and/or investigators.
• •History of cardiopulmonary (including asthma or use of inhalers),
• •History of diabetes or dyslipidemia
• •History of psychiatric illness
• •Blood Pressure \> 140/90
• •Body Mass Index ≤ 18.5 or ≥ 30 kg•m2
• •Evidence of any of the above by physical examination, Electrocardiogram (ECG) or echocardiogram
• •Resting Heart Rate \> 100 beats/min
• •Cardiac rhythm disorder, specifically: rhythm other than sinus, Supraventricular Tachycardia (SVT), atrial fibrillation, ventricular tachycardia
• •Use of prescription medication except oral contraceptive pills
• •History of illicit drug use (self-stated)
• •Pregnant
• •Any other condition(s) deemed by the physician investigators that put subjects at risk for participating in the study