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.

Muscle cramps can strike anyone — from athletes mid-game to expectant mothers in the middle of the night — and they’re more than just an annoyance. They’re sudden, involuntary contractions often ...

Plus, when to see a doctor for cramping.

High school fall sports teams will begin their official practices soon — including double sessions for football. While a warm August may be a wonderful time of year to swim and kayak, it may not offer ...

Sleep myoclonus is involuntary, nonrhythmic muscle twitching that occurs either as a person falls asleep or during sleep. The movements include hiccups, starts, and jerks. Sleep myoclonus is not a ...

Most people have likely had the unpleasant experience of a muscle cramp, also known as a charley horse or muscle spasm. And while most cramps will quickly go away on their own, there are a few helpful ...

Clonus reflex is a set of rhythmic, involuntary muscle movements. It is a neurological condition that affects the nerve cells that control muscle movements. Damage to the nerves, as in clonus, causes ...

Poor sleep, difficulty moving and injuries from hitting something accidentally are just some of the challenges faced by suffers of often-painful involuntary muscle spasms. However, a new study ...

Last night I was working installing Vista on my laptop when I experienced something that freaked the shit out of me. I was standing up when my got tunnel vision, my perception of color was gone, and ...

If painful leg cramps have woken you up in the middle of the night, the condition can be both scary and confusing. You may think it’s due to the position you’re sleeping in — but there’s more to know ...

Blepharospasm describes a condition where a person experiences an involuntary spasm of the muscles surrounding the eyelid. “Blepharo” refers to the eyelids, while “spasm” describes twitching of the ...