View full lesson: http://ed.ted.com/lessons/how-do-drugs-affect-the-brain-sara-garofalo Most people will take a pill, receive an injection, or otherwise take some kind of medicine during their...
========== Most people will take a pill,receive an injection,or otherwise take some kind of medicine
during their lives,but most of us don't know anything
about how these substances actually work.How can various compounds impact the way
we physically feel,think,and even behave?For the most part, this depends on
how a drug alters the communicationbetween cells in the brain.There are a number of different ways
that can happen.But before it gets into the brain,any drug must first reach the bloodstreamon a journey that can take anywhere
from seconds to hours,depending on factors like how
it's administered.The slowest method is to take
a drug orallybecause it must be absorbed by
our digestive systembefore it takes effect.Inhaling a drug gets it into
the bloodstream f...
