A new study finds that about 10 percent of Americans say they've had a drug or alcohol problem at one point in their lives, but overcame it.

Researchers asked more than 39,000 people about their experiences with substance abuse. You can read more about the study here.

Dr. John Kelly of the Recovery Research Institute at Massachusetts General Hospital led the study and says there's some good news when it comes to treating addiction. He joined Morning Edition to talk about the study.