If you're unfamiliar with the awesome educational YouTube channel In a Nutshell (formerly Kurzgesagt), then you're missing out. The channel, which is manned by small group of artists and animators, regular posts animated videos that teach and explain complicated issues and concepts, from explaining the cause and concerns of the Syrian refugee crisis in Europe to the very definition of life.

In their latest video, the team explores the what many people think is the cause of addiction and why that's no longer believed to be the case by leading addiction specialists. Check it out!