From NPR.
This is hidden brain.
I'm Shankar Vedantan.
If you're living in a city, you may have noticed new buildings popping up.
A high rise here, a skyscraper there.
These concrete jungles make urban living possible.
They allow millions to live together in close proximity and allow modern economies to flourish.
But is there something important missing in this picture?
For most of the last 2 million years, humans lived in the natural world, relying on nature for food and shelter.
The amount of time we've spent in urban dwellings is a small sliver of the total time humans have spent on earth.
When you look at it this way, our shift from forest life to freeways in overflowing cities has been very recent and very dramatic.
So how is this shift affecting our health, our mood, and our sense of calm?
This week on hidden brain.
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