Irfan Rahman, PhD, is a Dean’s Professor of Environmental Medicine, Medicine (Pulmonary), Public Health Sciences, and General Dentistry at the University of Rochester Medical Center (School of Medicine and Dentistry), NY, and Director of the Flavoring Inhalation Toxicology Center. Dr. Rahman has completed his postdoctoral trainings at the University of Miami, Florida, and Georgetown University, Washington, DC. He obtained further training at the University of Edinburgh, Scotland, followed by a faculty appointment at the same university. He then joined the University of Rochester Medical Center, Rochester, in 2004. Dr. Rahman’s research interests include oxidative stress, inflammation, molecular clock, mitochondrial dysfunction, epigenetics, and cellular senescence by environmental tobacco smoke/tobacco products (cigarette smoke, e-cigarettes, waterpipe/hookah, and cigars) in the lungs (chronic obstructive pulmonary disease and idiopathic pulmonary fibrosis), as well as oral/periodontal diseases. His research is funded by the National Institutes of Health, and he is the PD/site PI for the TCORS U54 and TriState SenNet U54 consortium. He has published over 300 publications in peer-reviewed journals and has been invited to write chapters in textbooks and editorials in journals (h-index = 108, i-index 258, total citations 49,324, Highly Cited Researchers, 2014, 2015, and 2016 by Thomson Reuters).