Dr. Carll has studied the cardiovascular harms of exposures to stressors, particularly inhaled toxicants, for 20 years.  Specializing in cardiac pathophysiology and inhalation toxicology, Dr. Carll has demonstrated how exposures to air pollutants and consumer product aerosols can impair cardiac electrophysiology and pump function, leading to arrhythmias and heart failure exacerbation. Through both animal and human studies, his work indicates the autonomic nervous system as a key mediator in these pathophysiologic effects, especially in tobacco product toxicity. Dr. Carll is further expanding his research into the physiologic impacts of other stressors (e.g., exercise and thermal stress) and autonomic modulation of cardiac conduction.