Adrenaline increases the "alertness" of the nervous system, meaning it's ready to trigger muscle contraction. It also ...

Muscular tinnitus is a very rare type of tinnitus where you hear sounds caused by muscle spasms in your middle ear. Tinnitus is a condition where you hear sounds like ringing or buzzing that are not ...

Many of us have felt a muscle in some part of our body suddenly and involuntarily tighten, causing a twitch or even severe cramp. Muscle spasms are common and typically don't signal a severe health ...

The flow of water within a muscle fiber may dictate how quickly muscle can contract, according to a new study. The flow of water within a muscle fiber may dictate how quickly muscle can contract, ...