New research shows bottled water can contain more tiny plastic particles than tap water. Scientists explain why everyday ...

Nasal rinses can relieve sinus congestion. But using the wrong liquid can, in rare cases, give people infections with deadly brain-eating amoebas. That practice is the likely source of rare ...

Tap water is not sterile, and using it in home medical devices can result in serious and even deadly infections. But in a study published Wednesday in the journal Emerging Infectious Diseases, ...