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Essential tremor
- ... by involuntary, sustained muscle contractions. Parkinsonism can include tremors, unusually slow movement (bradykinesia), rigidity, an inability to ... into and out of neurons, which is an essential part of the signaling process that controls muscle ...
- ... and recurrent seizures (epilepsy). Movement problems such as tremors and difficulty coordinating movements (ataxia) can be severe, ... messengers called neurotransmitters. Both of these substances play essential roles in transmitting signals in the nervous system. ...
- ... may develop loss of coordination in their arms, tremors, and uncontrolled muscle tensing (dystonia).Signs and symptoms ... called CaV2.1. CaV2.1 channels play an essential role in communication between neurons in the brain. ...