Adrenaline increases the "alertness" of the nervous system, meaning it's ready to trigger muscle contraction. It also increases the amount of blood flow and changes the tension of the muscles, which, ...

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 ...

Infectious agents can cause muscle twitching and spasms, too. The most commonly known is probably tetanus, which causes a phenomenon called lockjaw, where the neck and jaw muscles contract to the ...

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It has happened to many of us. While in the middle of work, a study session or just spending time with friends, your eyelid flutters for no apparent reason. At first, it may be nothing more than a ...

This 5-step practice, including palming, rapid blinking, and focus shifting, re-lubricates eyes and relaxes optical nerves.

There’s nothing quite as distracting as a sudden eye flutter while you’re trying to work, it’s the universal sign that you’re probably stressed out, burnt out, or just haven’t seen a pillow in far too ...