In the first episode of The Heart of the Researcher, Kostis Kotsonis interviews Kostas Stamatopoulos, a hematologist and director of the Institute of Applied Biosciences at CERTH. For the past thirty years, he has witnessed groundbreaking technological advancements in cancer treatment, precision medicine, and electronic health. However, he has also encountered many setbacks, seeing the persistence of factors harmful to public health, such as environmental overexploitation, citizen misinformation, and social inequalities.