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.

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 ...