Marcin Wełnicki, MD, PhD, is an FESC Specialist in internal medicine and clinical pharmacology, a member of the Board of the Cardiovascular Pharmacotherapy Section of the Polish Cardiac Society, the Polish Society of Clinical Pharmacology and Therapy, the Polish Society of Lifestyle Medicine, and the Polish Society of Holistic Medicine. He is a clinician and educator, for many years associated with the Third Department of Internal Medicine and Cardiology at the Medical University of Warsaw in a scientific and educational capacity. He is an author and co-author of numerous articles, monographs, and chapters in textbooks on cardiovascular pharmacotherapy.