The nervous system
There are many drugs that can slow down the body but they don't come into affect immediately
They can slow down your central nervous system (Brain)
They can slow down your central nervous system (Brain)
Benzodiazepines,barbiturates, and sleep medications.
It lowers the blood pressure, and lowers the heart rate for starters.
the main effect of a stimulant is speeding up in the nervous system. (the opposite of a depressant is a stimulant) deprassants slow down the nervous system
Opiates.
nurofen
hey can destroy the nervous system and slow down the process of digestion.
Tranquilizers affect the entire body because it affects the nervous system. The nervous system and the brain control the entire body. If you "dampen" the sensations of the nervous system you will slow things down. So the intenstines do slow down somewhat. People who tend to get constipation notice more problems with their intestines when they are on tranquilizers for a while. The drug does not do serious damage to the intestines as a norm.
The autonomic nervous system is always on automatic. You don't have to think about it. When it needs to speed up, it speeds up. when it needs to slow down, it slows down. It is all automatic.