Thanks for the reply, but this still doesn&#x27;t clarify anything... what is &quot;behavioral and psychological toxicity&quot;? I was under the impression that the &quot;bad consequences&quot; of these drugs was the risk of damage to the body, but the phrasing implies that they&#x27;re <i>not</i> talking about physical&#x2F;physiological toxicity. So what&#x27;s left? Does using cocaine turn you into an asshole or something? What behavioral&#x2F;psychological changes are there beyond those associated with the regular consumption of <i>any</i> addictive substance?