Medically reviewed by Brigid Dwyer, MD Key Takeaways Involuntary muscle movements happen when your body moves without you intending it, like with tics or tremors.  The causes of involuntary movements ...

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 ...

Whole-body vibration enthusiasts promise everything from fat loss to stronger bones. Learn what the clinical research ...

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 ...

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 ...

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 ...

Tremors are involuntary shaking movements in one or several parts of the body. These abnormal movements happen because of muscle contractions. Most sources do not list spinal problems as a potential ...

Clonus reflex is a set of rhythmic, involuntary muscle movements. It is a neurological condition that affects the nerve cells that control muscle movements. Damage to the nerves, as in clonus, causes ...