Jacques Cohen is one of the founders of Reprogenetics, an independent PGD service based in the USA and director of Tyho-Galileo Research Laboratories – an organization that promotes and conducts human fertilization and preimplantation research. He is also the Scientific Director of IVF-Online. He was trained in the 70s at Erasmus University in Rotterdam, Holland as a Reproductive Scientist specialized in in vitro fertilization and cryobiology. He was an embryologist in Bourn Hall Clinic and moved to the USA in 1985. He has authored more than 200 publications and several textbooks. He is the senior adjunct editor of Reproductive Biomedicine Online and the North-American editor of Zygote. He is associated with several laboratories involved in IVF and PGD both in Europe and the USA. His interests are embryonic viability, cryopreservation and developing tests and tools for IVF laboratories.