Causes of Addiction 2 of 2


Scientists are finding increasing evidence that addiction to alcohol, painkillers and other substances can result in physical changes in the brain. In this interview, Dr. Christopher Welsh discusses the causes of addiction to such substances as painkillers.

Part two of this two-part program addresses the following topics:

  • Changes in the brain due to addiction
  • Types of treatment
  • Methadone
  • Role of rehab


Dr. Christopher Welsh is a psychiatrist and addictions specialist at the University of Maryland Medical Center and an assistant professor of psychiatry at the University of Maryland School of Medicine.

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This page was last updated: March 6, 2014

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