Nena completed her undergraduate studies in Nutrition and Dietetics at Harokopio University, Athens. Then, she received an MSc in Nutrition and Health, specializing in Epidemiology and Public Health, from Wageningen University in the Netherlands. During her MSc studies, Nena conducted an internship at the International Agency for Research on Cancer (IARC). During her PhD, she completed a project as a visiting researcher at the German Cancer Research Center (DKFZ). Nena completed her PhD on the epidemiology of breast cancer in situ at the Epidemiology, Biostatistics and Prevention Institute (EBPI) of the University of Zurich and the cancer registry of the Cantons Zurich, Zug, Schaffhausen, and Schwyz. She currently works at EBPI as a postdoctoral researcher. Her research focuses on the dietary habits in Switzerland, various health-promoting guidelines, and their link with cancer. Her research interests lie in non-communicable disease prevention and the promotion of healthy nutrition.