American scientists have identified quite a dangerous pattern. According to their data, which were obtained in the study, poor ecological state of the environment has a direct impact on fetal development. It turns out that the dirty air that you breathe expectant mothers during pregnancy, increases the risk of birth defects in their unborn children.
Scientists from the University at Stanford University analyzed data obtained in the period from 1997 to 2006 years, which related to children with birth defects. After analysis of the data, the researchers came to the conclusion that the bad state of the environment in which your pregnancy, and subsequent disease in children there is interconnectedness. Often these children revealed this congenital anomaly as neural tube defects. This disease manifests itself in the form of uneven development of the spinal cord and brain. It should also be noted that scientists cannot explain the emergence of 2/3 of the cases of congenital heart defects in newborns.