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 ...

Addiction is a chronic brain disorder and not simply a behavior problem involving alcohol, drugs, gambling or sex, experts contend in a new definition of addiction, one that is not solely related to ...

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.

“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 ...

A psychological test that determines the degree of addiction a person has using the Internet. Developed by Dr. Kimberly Young in 1998, a result from 80 to 100 points means Internet usage is causing ...

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 ...

Spending an excessive amount of time on the Internet. To be diagnosed with an "Internet addiction disorder" (IAD), the time spent must be detrimental to the person's daily routine. There is ...