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 ...

This is read by an automated voice. Please report any issues or inconsistencies here. Having your mouth taped shut is the stuff of nightmares — but some people are doing just that to themselves. And ...

A lack of confidence, an abundance of nerves, shyness, and not having the correct vocal training can all lead to mumbling. Being an actor in any medium requires an audience to hear and understand what ...