It seems like some drugs make a person restless and they twitch, sway, wander, and generally move back and forth. Is there a chemical process behind this and how does it work?
In: 2
Nerve cells of the brain and spinal cord make up the central nervous system (CNS). The CNS is responsible for transmitting every nerve signal in the body back and forth between the brain and appendages (arms and legs).
To move a muscle, the CNS sends a movement signal but then send several other signals that keep the muscle steady. Cocaine over-activates the nerves the move muscles so much that the steadying nerves have a difficult time keeping the movement smooth and steady. Muscle movement is a balancing act, with the force of movement being reigned in with counter-movement to slow and steady it.
https://www.therecoveryvillage.com/cocaine-addiction/faq/does-cocaine-make-you-jittery/
Latest Answers