Conventional wisdom suggests that pregnant mothers should have a healthier lifestyle for their babies. During pregnancy, the mother's medical conditions and pre-existing conditions are observed to know these conditions can impact their baby. The recent study A pregnant mother's health condition is important during pregnancy. However, a recent study says that miscarriage or stillbirth is influenced by the father's health as much as the mother's health does. The study was led by an associate professor from Stanford University School of Medicine, Michael Eisenberg. It was published in the journal Human Reproduction. Before determining that a father's health is related to stillbirth and miscarriages, the study observed millions of pregnancies in the United States.