My previous posts have focused on recognizing and preventing excessive substance use, with an emphasis on providing the latest information about my special interest – cannabis (see 20 Questions to ...

Is preaddiction real? If so, what is it? Preaddiction proposes that some addiction-related changes emerge before full ...

The terms “addiction” and “dependence” can seem similar, but they are different. Dependence occurs when the body physically relies on a drug. Addiction involves changes in behavior. A person with an ...

“When I use a word,” one of 19th century British author and mathematician Lewis Carroll’s characters once said, “it means just what I choose it to mean — neither more nor less.” Though he was a ...

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 ...