Methylene blue, a synthetic compound once used to dye fabric, suddenly seems to be everywhere - touted by celebrities and wellness influencers and apparently used by Health Secretary Robert F. Kennedy ...

Wellness enthusiasts seeking to hack their way to health and longevity have a new favorite remedy — one that stains their tongues blue. Methylene blue has been around since the 1870s when it was used ...

Add Yahoo as a preferred source to see more of our stories on Google. IT’S A BLUE-TINTED synthetic dye. “It is FDA-approved for methemoglobinemia—a rare blood disorder—and is given in the hospital,” ...

Trump's nominee to be the secretary of health and human services was spotted drinking blue liquid on a plane.