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 ...

You have 3 different types of muscle: skeletal, smooth, and cardiac. Skeletal muscle alone accounts for over 650 different muscles. Have you ever wondered how many muscles you have in your body? The ...

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 ...

Dyskinetic cerebral palsy is the second-most-common type of cerebral palsy (CP) in the U.S. All forms of cerebral palsy are life-long conditions that affect muscle movement and control. CPs are the ...

Dr Kathryn Fox is an Australian medical doctor and bestselling crime writer, best known for her forensic thrillers featuring ...

The brain controls movement by sending electrical messages through nerves to the muscles. When this communication becomes weaker with age, the muscles may not respond with full strength even if they ...