Skeletal muscles are voluntary muscles that can be consciously controlled, such as the muscles of your neck, arms, and legs. It makes up 30% to 40% of human body weight in a healthy person. The ...

Spasticity is a condition that causes your muscles to stiffen, tighten, and contract. It happens involuntarily, which means you don’t have control over it. Spasticity typically happens because of ...

A scientific review on autoimmune neurological diseases reveals what occurs in our body when the immune system, by mistake, produces antibodies that target a protein essential for the normal ...

Add Yahoo as a preferred source to see more of our stories on Google. A muscle spasm, also known as a cramp, twitch or charley horse, is the sudden and involuntary forced contraction of a muscle.

Dystonia causes involuntary muscle contractions that lead to unintended movements and changes in posture. It’s estimated to affect over one-third of people with Parkinson’s disease. Parkinson’s ...

Athetosis and chorea are two types of involuntary movements that can occur in children and adults with neurological conditions, such as cerebral palsy. The movements have different features, and the ...

When we think of movement disorders, the tremors associated with Parkinson's disease are probably what first spring to mind. However, there are other equally debilitating and much less well-known ...