Addiction is a complex disease that affects the brain and behavior. When people use drugs, their brain's reward and motivation system is affected in a way that makes them want to keep taking the drug. Over time, continued drug use causes changes in the brain that can last long after a person stops taking drugs. These changes in the brain are what cause the harmful behaviors seen in pe... https://www.coherentmarketinsights.com/industry-reports/drug-addiction-treatment-market