Top 10 Most Addictive Substances In The World

VOICE OVER: Rebecca Brayton WRITTEN BY: Garrett Alden

These things grab on and don't let go. For this list, we'll be looking at the substances that have the highest rates of addiction, at least according to the majority of reputable researchers. WatchMojo counts down the Top 10 Most Addictive Substances in the World. read more...