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.

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Though many people experience muscle twitching, it's often incorrectly identified as a muscle spasm. While both are involuntary ...

Although the occasional muscle spasm is relatively normal, sometimes they can be a cause for concern. How do you know when you should seek medical attention? We spoke with several doctors who explain ...

You're in the middle of your squat reps — weight in hand — and just like that, a charley horse causes your calf muscle to go rogue. When this type of muscle spasm or cramp hits, there is no mistaking ...

Leg cramps that keep coming back may signal underlying health issues. Here are the causes, warning signs, and when frequent ...

A former intern at The Scientist, Amy studied neurobiology at Cornell University and later earned her MFA in creative writing from the University of Iowa. She is a Los Angeles–based writer, editor, ...

As the opioid crisis continues in America, more and more doctors are steering away from prescribing opioid medications as a treatment for pain. Since 1999, more than 932,000 people have died from a ...

Tolperisone, a centrally-acting muscle relaxant, may treat symptoms of acute muscle spasms without the sleepiness and cognitive effects associated with other skeletal muscle relaxants, data from the ...