What causes addiction, and why is it so hard to treat - Judy Grisel

Take a look at the science of how addictive drugs affect your body and why substance addiction can be so difficult to treat. As of 2021, more than 36 million people were estimated to be experiencing substance use disorder. This condition spans a spectrum of patterned drug use that causes issues in a person's life, with substance addiction at the more severe end. Why are some people more susceptible to addiction, and why can it be so difficult to treat? Judy Grisel takes a look at how addictive drugs affect the body. Lesson by Judy Grisel, directed by Gabriella Marsh.