Adoption of specific professional policies can immediately reduce risk of preterm birth as the experience in assisted reproduction has shown when the number of embryos during embryo transfer was limited.[1] Many countries have established specific programs to protect pregnant women from hazardous or night-shift work and to provide them with time for prenatal visits and paid pregnancy-leave. The EUROPOP study showed that preterm birth is not related to type of employment, but to prolonged work (over 42 hours per week) or prolonged standing (over 6 hours per day).[88] Also, night work has been linked to preterm birth.[89] Health policies that take these findings into account can be expected to reduce the rate of preterm birth.[86] Preconceptional intake of folic acid is recommended to reduce birth defects.