New research confirms that experiencing higher levels of light at night may not be healthy for people, particularly pregnant ones. A study published in the American Journal of Obstetrics and Gynecology Maternal Fetal Medicinereports that “Pregnant adults who had greater light exposure three hours prior to sleep had a higher risk of developing gestational diabetes than those who had less exposure during this period. . . . Gestational diabetes is a type of diabetes that occurs during pregnancy. It can…