Add Yahoo as a preferred source to see more of our stories on Google. Many of us have felt a muscle in some part of our body suddenly and involuntarily tighten, causing a twitch or even severe cramp.

Add Yahoo as a preferred source to see more of our stories on Google. A muscle spasm, also known as a cramp, twitch or charley horse, is the sudden and involuntary forced contraction of a muscle.

‌Hemifacial spasm is a disorder of the nerves and muscles that causes nonpainful involuntary twitching on one side of the face. Many people refer to hemifacial spasms as lip muscle spasms. Hemifacial ...

BALTIMORE -- Children with infantile spasms were not likely to have a sibling who also had infantile spasms, other forms of epilepsy, or autism spectrum disorder (ASD), a retrospective cohort study ...

Esophageal spasms occur when the esophagus contracts abnormally, and they can be painful and uncomfortable. When they happen, the movement of food and drink toward the stomach is disrupted and less ...

Unfortunately, pain and injury can be a few downsides of an active lifestyle. A combination of genetics and incomplete cool-downs have led me to some pretty severe back issues over the years, and I ...

Esophageal spasms cause painful chest contractions and affect swallowing and digestion. Medications and peppermint oil can help relieve esophageal spasm symptoms. Contact a doctor if spasms last more ...

Blue Jays manager John Schneider said Sunday that Heineman has been contending with back spasms lately, Keegan Matheson of MLB.com reports. The back issue explains why Heineman will be held out of the ...