Iran is facing a female drug-abuse crisis as the number of young, well-off and well-educated women using substances continues to rise.

At least six million of Iran's 77.7 million population have drug related problems, according to official reports.

And addiction, especially to Shisheh - a high-purity form of crystalline methamphetamine - is increasingly spreading across all social classes.

The substance has become the second most popular drug after opium among young people seeking an escape from social and economic hardship, the Financial Times reports.

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