Many women experience some morning sickness during pregnancy, but one to two percent of pregnant women suffer from a condition called hyperemesis gravidarum (HG), a severe form of nausea and vomiting. The symptoms, including rapid weight loss, malnutrition, and dehydration, can lead to serious health consequences for both mother and baby. After debilitating nausea and vomiting resulted in her losing a pregnancy in 1999, geneticist and Brown alum Marlena Schoenberg Fejzo was inspired to focus her research on the little-understood condition. Now, she has discovered a genetic cause of HG. Read more in my profile of Fejzo for the Brown Alumni Magazine: Years Later, a Miscarriage Clue .