In 2025, Yimeng Wang and team from Peking University studied 88,461 UK Biobank adults who wore wrist trackers for a week, followed for 6.8 years. They checked six sleep traits, like consistent bedtimes and steady rhythms, against 172 diseases, adjusting for age, diet, and lifestyle.

A 2023 U.S. Geological Survey study found that at least 45% of the nation’s tap water is estimated to have one or more types of per- and polyfluoroalkyl substances (PFAS). PFAS are used in various products like non-stick cookware and firefighting foams and are known for their persistence in the environment.