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.

If you have upper motor neuron lesions, you have damage to certain nerve cells that help you move. Medicines and therapy can help control symptoms like muscle spasms and help you walk and talk more ...

Medically reviewed by Jennifer Steinhoff, MD A herniated disc can cause a pinched nerve, which leads to pain and weakness in your lower back.  A sedentary lifestyle and poor posture can increase your ...

Lower right back pain can come from issues with muscles, discs, joints, or internal organs. Numbness, tingling, or weakness with lower right back pain is often a sign of nerve involvement. Using ice ...

Tiger Woods had another surgery on his lower back — his sixth in the past 10 years — on Friday morning. This one he hopes will relieve some of the spasms he experienced this year. In a brief statement ...

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 ...