Esophageal spasms cause painful chest contractions and affect swallowing and digestion. Medications and peppermint oil can ...

A muscle spasm — also known as a charley horse, muscle cramp or twitch — is a sudden, involuntary movement in one or more muscles. Common causes include stress, exercise, or dehydration, but nerve ...

A rare condition known as Prinzmetal’s Angina can cause sudden chest pain in cold weather—even in people with no obvious ...

‌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 ...