Sleep myoclonus is involuntary, nonrhythmic muscle twitching that occurs either as a person falls asleep or during sleep. The movements include hiccups, starts, and jerks. Sleep myoclonus is not a ...

Hypnic jerks are common, sudden muscle twitches that happen when you fall asleep. Stress, anxiety, and fatigue can increase the chances of experiencing sleep starts. Sleep starts are harmless but can ...

Myoclonus is a sudden and involuntary muscle spasm. It is usually a symptom of an underlying disorder and can interfere with eating, talking, and walking. The movement is involuntary and can’t be ...

Myoclonus is a sudden, random muscle jerk. It can happen alone or stem from a medical condition. Possible causes include medication side effects, damage to the nervous system, and disorders that ...

Myoclonus (pronounced "my-OCK-lo-nus") is a sudden muscle spasm that you can’t control. It can be a natural reflex – like jumping when something scares you or getting the hiccups from laughing too ...