He was head of the Surgery and Maternity Units of the Pithiviers Public Hospital, later he founded the Primal Health Research Center in London. In the 1970s he introduced the concept of home-based delivery rooms and delivery pools in hospital maternity wards. He is a pioneer and promoter of the concept that the most decisive phase of human ecology is the moment is the pre and perinatal. Author of fourteen books published in twenty-two languages.