We've all been there before. Running along the basketball court or swimming across the pool, when, all of a sudden, we experience a sharp pain in our foot or leg. Muscle cramps are common, affect ...

Though many people experience muscle twitching, it's often incorrectly identified as a muscle spasm. While both are involuntary contractions of a muscle, muscle spasms and muscle twitching aren't ...

Medically reviewed by Mallory Christopherson, DC Key Takeaways Back spasms are involuntary muscle contractions. They can ...

Sandifer syndrome is a type of movement disorder that’s associated with acid reflux and—sometimes—a type of stomach hernia. Movements can range from arching in your back to tense neck postures. They ...