You may be breathing through your mouth because you have obstructive sleep apnea, a sleep disorder where breathing repeatedly ...

Taping the mouth shut before bed may seem like a quick fix for better sleep, but doctors are raising serious alarms about this viral trend.

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 ...