Per- and polyfluoroalkyl substances (PFAS) are a group of nearly 10,000 long-lasting chemical compounds that stay in the environment and have been linked to adverse health effects on humans, including ...

Late last year, geneticists made the discovery that morning sickness's most serious presentation, hyperemesis gravidarum (HG), is caused by the hormone GDF15, not human chorionic gonadotropin as ...