Research demonstrates that most of the urban population in the US as well as Europe live with noise levels averaging 50 decibels plus. An average noise of 50 decibels has been shown, in study after study, to increase the level of stress hormones in the human body, and to make us more susceptible to pathologies such as hypertension and stroke. Living in a city means accepting the noise that comes with it, but you don’t have to tolerate it all the time. If you want to experience what silence feels like again, have a look at this map.