Where is the world's most stressful city?

Research has shown that city-living has been linked to depression and anxiety – but what is it, exactly, that makes urban life so stressful? And what can be done to make the world’s cities more habitable?“Sitting constantly in dilapidated cars wrecks their spines, and the ceaseless shouting that goes on in the streets of Cairo destroys their nervous systems,” Khaled Al Khamissi wrote in his 2007 book Taxi, a collection of conversations with 58 of Cairo’s 80,000 taxi