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 ...

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 ...

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 ...

Bladder spasms cause you to suddenly feel like you need to run to the bathroom and empty your bladder. They occur when the muscles in your bladder contract rapidly. Bladder spasms are common for ...

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 ...

‌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 ...

Coronary artery spasms temporarily tighten the arteries that wrap around your heart. Your coronary arteries are blood vessels that supply blood and oxygen to your entire heart muscle. The artery walls ...

There is a link between coronary artery spasms and anxiety. Psychological factors, such as anxiety and depression, may cause physical changes to the arteries that supply blood to the heart. Around 40% ...