Kim and Chris Clark had tried almost every medical option available for their 10-year old son Caden, who has severe epilepsy. Then they discovered medical marijuana.

» The families using medical marijuana to help their kids

Photo: Mae Ryan/Guardian

Illegal drugs and prostitution contributed almost £10bn to the UK economy in 2009, according to newly released figures from the Office for National Statistics. Get the breakdown 

“We appear to be in the midst of a psychiatric drug epidemic”
— Psychiatric drugs are doing us more harm than good, writes Peter Gøtzsche »

Hitman. Drugs mule. Would you really do anything for a job?

The government’s Universal Jobmatch website may soon be a thing of the past, which is just as well looking at some of the fake adverts that have appeared on it since 2012. Read more

One fake ad on the Universal Jobmatch site was looking for an ‘MI6 target elimination specialist’. Photograph: Alamy

Generation jitters: are we addicted to caffeine?

Whether it’s in coffee, Coke or energy drinks, caffeine is the drug many of us can’t live without – but do you have any idea how much is in your daily hit? Read more

Image: Liz McBurney for the Guardian

The mind of a heroin addict: the struggle to get clean and stay sober

For a heroin addict, recovery is a life-long process. Philip Seymour Hoffman had been clean for 23 years before he relapsed in 2013, and died from an apparent overdose last week. 

To many people who have never grappled with addiction, it can be difficult to comprehend the desperate desire to use, even after so many years sober. To gain deeper insight into drug addiction, we asked recovering heroin users to share their experiences with us. Read more

Russell Brand: my life without drugs

Russell Brand has not used drugs for 10 years. He has a job, a house, a cat, good friends. But temptation is never far away. He wants to help other addicts, but first he wants us to feel compassion for those affected. Read more

Photograph: Mark Nolan/WireImage