Mukti Jain Campion asks why India's people have virtually no access to medical morphine.
Sian Williams analyses the importance of physical exercise to brain health.
Professor Andrew Hussey explores whether heroin use creates a particular aesthetic style.
Sally Marlow investigates why many jazz musicians turned to heroin in the post-war period.
Naomi Alderman describes how Humphry Davy discovered laughing gas.
Writer Rachel Trezise looks at the effects of class B drug MCAT on the South Wales Valleys
How the tobacco industry bosses lied about nicotine addiction.
Director Oliver Stone on his new film ‘Savages’ about two marijuana growers in California.
Should the government cut back on its use of methadone to treat drug addiction?