What causes addiction? Easy, right? Drugs cause addiction. But maybe it is not that simple. Check out Johann Hari’s book about drugs and addiction: Chasing the Scream: The First and Last Days of the War on Drugs.

“It is now 100 years since drugs were first banned in the United States. On the eve of this centenary, journalist Johann Hari set off on an epic three-year, thirty-thousand-mile journey into the war on drugs. What he found is that more and more people all over the world are beginning to recognize three startling truths: Drugs are not what we think they are. Addiction is not what we think it is. And the drug war has very different motives to the ones we have seen on our TV screens for so long.”