The nervous system controls all muscle movement simply the brain tells the muscles the contract ( move) nerves will also send false singles to the muscles which will force the muscle to twitch in...
Depressant Drugs:Alcohol, Benzodiazepines, Barbiturates and other central nervous system depressant drugs act primarily on a neurotransmitter substance known as GABA (Gamma Aminobutyric Acid). GABA...
There is no simple way to explain this however lets see where it goes, : When one takes a chemical, Any chemical Which causes the brain to act in a way that normally without the chemical it would be...