Chemicals that have certain hallucinogenic effects on the human nervous system are mainly classified as tryptamines. More exotic tryptamines are also classified as ergolines, and ibogoids. Other groups of chemicals that have these effects are phenethylamines and substituted amphetamines.
You can get a nervous breakdown from stress.
Alcohol. It is a CNS (central nervous system) depressant. this is a guess on what is the most used - but it seems like a logical one. THC (marijuana) is not technically a CNS depressent - and i bet alcohol is still used more often. Though both chemicals have effects on the GABA system
Cortisol
It dilates the bronchioles.
Yes, endorphins are brain chemicals known as neurotransmitters. They transmit electrical signals within the nervous system.
Nembutal (Pentobarbital) is a barbiturate. Barbiturates act as depressants on the central nervous system.
hormones
You can get a nervous breakdown from stress.
Tobacco effects mainly the respiratory system and nervous system. Alcohol effects the circulatory system the digestive system (e.g. liver) and the nervous system.
Alcohol temporarily slows the reactions of the nervous system.
Calms you down
you will die.
Yes, alcohol's primary effects are on the central nervous system.
The central nervous system.Multiple Sclerosis effects the central nervous system
bacause it grows every day
the brain along with the nervous system
An agent that mimics the effects of the sympathetic nervous system.Example: Epinephrine and norepinephrine are sympathomimetic hormones because they produce effects that mimic those brought about by the sympathetic nervous system.