Addiction is a state of severe physical and psychological dependence on certain substances. People living with addiction may have brain differences and often require treatment, but stigma can prevent ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Over the past year and a half, Scientific ...

When science first studied addictive behavior individuals who became addicted to a substance commonly were viewed as being morally flawed human beings lacking willpower. Today, that view has changed.