It is with great sadness and emotion that we learned of the passing of Bernard Jégou, on the eve of his 70th birthday. Bernard was a passionate, committed, curious and innovative researcher with an exceptional international career. After training in Australia, Norway and the United States, he was recruited as a lecturer at the University of Rennes. In 1991, Bernard then became a research director at the French national institute for health (Inserm) and set up his research team. In 2012, he then initiated the creation of the Research Institute for Environmental and Occupational Health (Irset), which he directed until 2019 in parallel with his research direction at the French School of Public Health (EHESP). Since 2019, he continued his activities as Inserm Emeritus Research Director in the team of Nathalie Dejucq-Rainsford, his former PhD student. Author of over 250 articles, all along his career, Bernard conducted innovative research, particularly on reproductive biology and on endocrine disruptors, with strong national and international recognition. Involved in the highest academic bodies for better science and research structuration as well as in the dissemination of knowledge through numerous conferences and books, his activities were multiple and almost impossible to summarize. Charismatic, empathetic, deeply loyal, generous and truly human, Bernard Jégou supported generations of researchers and forged unwavering friendships across the globe. He greatly contributed to the structuring and international influence of research in Brittany, his native land to which he was deeply attached.

Bernard will be dearly missed. Kenavo Bernie!

Our thoughts go out to his loved ones.