For the uninitiated, mouth-taping is exactly what it sounds like: the mouth is taped shut, forcing the nose to take in air instead. Mouth-taping had long been the empty threat of spouses irked by ...

Lockjaw (trismus) is a painful condition that limits your ability to open your mouth all the way. It occurs when the muscles you use to chew spasm, meaning they can’t relax completely. The term ...