This question is somewhat ambiguous and rather broad but I will do my best to answer completely.
The two main types of effects for drugs on the CNS (Central Nervous System) is to depress it, or slow it down; or to stimulate it, or speed it up. Depressing the CNS lowers blood pressure, slows breathing and heart rate and if too severe can stop both. These will also cause drowsiness, memory loss, cognition, motivation, and possibly death. Stimulating the CNS will cause a rapid heart rate, raised blood pressure and can also affect breathing. Side effects of this are anxiety, restlessness, sleeplessness, hyperactivity, and in severe cases/overdoses can cause stroke and/or heart attack.
Some drugs do not belong in either category but still affect the CNS. These drugs are prescription medications and would have to be considered individually.
Drugs slower the nervous system.
true
No, drugs can have vastly different effects on the central nervous system.
yes it can.
Alchohol and cocaine
All psychotropic drugs affect the nervous system, from marijuana to dipropyltryptamine or methamphetamine. This is how they work, if they didn't affect the nervous system (particularly the brain) then no one would feel an effect.
It is true that drugs and alcohol can affect the mind It can also interfere with the central nervous system.
Almost all drugs affect the central nervous system. some however, are:- cocaine, heroin, marijuana, meth,tobacco, nicotine and caffeine ( this also affects your muscular system).
Many drugs will actually improve the human nervous system with almost no side effects. One of the most effective drugs that anybody could take to improve their nervous system is heroin
Some chemical compounds affect different parts of an organism in various ways including the brain and central nervous system generally. For a detailed answer on how various drugs impact the central nervous system, link to a website that references the various drugs and their idiosyncracies.
Drugs that affect the central nervous system causing mental or behavioral changes are commonly referred to as psychoactive drugs. These drugs can alter mood, cognition, perception, or behavior when taken. Examples include stimulants, depressants, hallucinogens, and opioids.
There are many drugs that can slow down the body but they don't come into affect immediately