This is a great informative video by one of my favourite Youtube geeks, Hank on the SciShow channel. If your looking for more answers than just the description in the big book, Hank will let you know how exactly we react chemically to drugs. This is why we are addicts, KNOW YOUR BRAIN!!
“Published on Nov 18, 2012
Hank describes how our brains respond biochemically to various addictive substances and behaviors and where those responses have come from, evolutionarily speaking.