Methylene blue is suddenly everywhere in wellness circles, praised as a brain booster, longevity aid, and even a cellular “reset.” Originally developed as a medical dye more than a century ago, this ...

Much ink has been spilled over US health secretary Robert F. Kennedy Jr.’s dalliances with anti-vaccine conspiracy theories, brain worms, nicotine pouches, and bizarre self-treatment with a synthetic ...

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 ...