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 ...
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, ...
DORAL, Fla. – To be technically correct, the back spasms that prompted Tiger Woods to withdraw from last week’s Honda Classic were the result of an issue born from troubles with the world No. 1’s ...
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7 common causes of pain in your lower right back
Medically reviewed by Amy Kwan, PT 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 ...
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