You’re relaxing on the sofa when suddenly your eyelid starts twitching. Or perhaps it’s a muscle in your arm, your leg, or your foot that begins to spasm – sometimes for a few seconds, sometimes for ...

While sitting still at your desk or watching TV, you sense a feeling of muscular discomfort in your arm or leg. It’s not quite a charley horse, but you can see your skin pulsating involuntarily, as if ...

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 ...

The human body comes with some strange quirks. Stacker reveals the explanations behind some of the weirdest reactions, like ...

If your eye has been twitching all day, or on and off for weeks, you’re not alone. Eyelid twitching, medically called myokymia, is one of the most common benign neurological symptoms people experience ...