Urban living changes the brain

the demands and constant stimuli of modern life tend to trigger our sympathetic nervous system, which governs fight-or-flight behaviors. And trigger it, and trigger it. We suffer the consequences: a long trail of research dating back to the 1930s shows people who produce chronically high cortisol levels and high blood pressure are more prone to heart disease, metabolic disease, dementia and depression. More recent research shows that the steady stress of urban living changes the brain in ways that can increase our odds of schizophrenia, anxiety and mood disorders.

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