how some psychoactive substances work in the nervous system?

crystal meth and amphetamine create a lot of dopamine.

Dopamine create: reward and pleasure

dopamine active the noradreline receptors

this increase the hearth rate

dilate pupils

triggers the body's attack or defense response

cocaine block reuptake of dopamine

activated a lot the created of energy

create feelings of euphoria

lowers appetite

sustances like:

mescaline

LSD

DMT

this sustances block the liberation of serotonin

The drogs affects the circuits of

perception

learning

behavioral regulation