How Does Drug Rehab Work?

How Does Drug Rehab Work?: "When we see someone struggling with drug addiction, we almost automatically know that we want them to get to a drug rehab center. But, are we even sure that we know what we're talking about? Do you actually know what happens in a rehab center or have you just heard that addicts need to go there? We hear about people entering rehab all of the time --especially celebrities - and a lot of people seem to have relapses. So, does that mean that rehab isn't worth it?"