“ALICE PARK” - Stressed in the City: How Urban Life May Change Your Brain

By ALICE PARK Wednesday, June 22, 2011
http://healthland.time.com/2011/06/22/stressed-in-the-city-how-urban-life-may-change-your-brain/
I live in New York City, and for me, there's nothing that compares to its culture, energy and convenience. I'm not alone in feeling this way — more than half of the world's population now lives in urban areas.
But I also know that when it comes to mental health, the urban lifestyle may not be such a good thing. City dwellers tend to be more stressed and have higher levels of mood disorders and psychotic illnesses such as schizophrenia than those living in rural or suburban areas. And now researchers say they have uncovered certain changes in brain activity that could potentially help explain why.
In an international study, researchers at University of Heidelberg and the Douglas Mental Health University Institute at McGill University report in the journal Nature that people who live or were raised in cities show distinct differences in activity in certain brain regions than those who aren't city dwellers.
Those who currently live in the city, for example, showed higher activation the amygdala, the brain region that regulates emotions such as anxiety and fear. The amygdala is most often called into action under situations of stress or threat, and the data suggest that city dwellers' brains have a more sensitive, hair-trigger response to such situations, at least when compared with those living in the suburbs or more rural areas.
