Cassandra Willyard

Cassandra Willyard is a freelance science writer based in Brooklyn, New York. She has been fortunate enough to traverse the nation’s most polluted waterway, ferry monkeys up the Amazon River, and ride in the cab of a combine.

Urban living: Good for the planet, but bad for our brains?

A New York City transplant wonders whether the city is making her crazy -- or if it's just her. The answer? Maybe a little of both.