Medically reviewed by Brigid Dwyer, MD Key Takeaways Involuntary muscle movements happen when your body moves without you ...

The gentle tremor that begins barely noticeable in fingertips can gradually transform into a persistent shake that affects daily activities from writing to drinking coffee. While modern medicine ...

Essential tremor is a movement disorder marked by involuntary, rhythmic shaking in the hands but sometimes affecting the head, voice and other areas. Its exact cause is still unknown. Recent research ...