Involuntary muscle movements happen when your body moves without you intending it, like with tics or tremors. The causes of involuntary movements can be chronic conditions, nerve damage, drug ...

Dear Dr. Gott: Once in a while, my body will "jerk" involuntarily as I fall asleep. What causes this? Does it mean I have a heart condition or other problem? Dear Reader: You appear to be describing a ...

A 20-year-old woman presented to a specialist epilepsy center with seizures, myoclonus, ataxia, and impaired executive functions. She was born to unrelated parents, had febrile seizures in infancy, ...