According to a recent UN report, Russia has one of the highest rates of teen suicide in the world.
The official figure is three-times higher than the global average, but analysts say the real picture may be worse as many cases go unreported.
The levels are one factor affecting Russia's demographic decline – described by Vladimir Putin, the prime minister, as a major "threat to national security".
Al Jazeera's Neave Barker reports from Saint Petersburg.
Source: Al Jazeera