Though many people experience muscle twitching, it's often incorrectly identified as a muscle spasm. While both are involuntary contractions of a muscle, muscle spasms and muscle twitching aren't ...

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After a grueling CrossFit workout on a hot Summer morning that involved kettlebell swings, goblet squats, and about 100 walking lunges, my lower body was toast. But what was weird was that my left ...

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 ...

The patient's symptomatology started 22 years ago with tightness and cramps in his lower extremities. Subsequently, he developed fasciculations and weakness in proximal as well as distal muscles in ...

Though eyelid twitching (technically called myokymia) can feel disconcerting, the good news is that it’s typically fleeting and harmless. Nevertheless, when you’re in the throes of the mini muscle ...

Proceedings of the National Academy of Sciences of the United States of America, Vol. 114, No. 7 (February 14, 2017), pp. 1702-1707 (6 pages) Although many aspects of optic pathway development are ...

Muscle ultrasound may be a useful tool in diagnosing later-onset spinal muscular atrophy (SMA), according to a new study that compared the technique to physical examinations and electromyography (EMG) ...