With states like Colorado and Washington legalizing recreational marijuana in the past few years, marijuana addiction is becoming a real concern. Addiction specialist Dr. Samuel Ball explains why marijuana is more addictive today than it was several years ago. Ball is CEO of The National Center on Addiction and Substance Abuse. Read more: http://www.techinsider.io/ FACEBOOK: https://www.facebook.com/techinsider TWITTER: https://twitter.com/techinsider INSTAGRAM: https://instagram.com/tech_insider/ TUMBLR: http://techinsider.tumblr.com/