Some drug and alcohol programs
currently used in prisons have little evidence to support them.
The number of teetotallers in Britain is rising. But that doesn't mean the rest of the population has a healthy relationship with alcohol.
Parents can help protect their kids from cannabis abuse by openly discussing the health risks, the pleasures and the responsible ways to use the drug.
Drug deaths in Scotland are now among the highest in Europe. What can be done?
Luz, a once-elegant 19th-century neighbourhood in downtown São Paulo, is prime real estate. But redevelopment means clearing out a homeless encampment known as "Crackland".
Scientists have never found a medicine to help crack users who want to decrease their consumption. Canadian researchers think cannabis might be the answer.