Michel Odent, MD, founded the Primal Health Research Centre in London and developed the maternity unit in Pithiviers, France, where birthing pools are used. He is the author of ten books published in twenty languages. Two of them—Birth Reborn and The Nature of Birth and Breastfeeding—were published originally in the United States.

You can read all about the wonderful hormonal orchestra of what goes on inside the body during labor and delivery in his article here – BIRTH PHYSIOLOGY.