Many of us have felt a muscle in some part of our body suddenly and involuntarily tighten, causing a twitch or even severe cramp. Muscle spasms are common and typically don't signal a severe health ...

Laryngeal dystonia causes spasms in the voice box (larynx). It can affect voice quality, leading to hoarseness or interruptions in sound. It may become difficult for a person to speak. Oromandibular ...