We all know that nature is good for us. We know to take care of the Earth, don’t pollute, be mindful of climate change. But how does being in nature affect us personally? How does it change our bodies and our minds, our biology, and our brains? Today I talk to Dr. Peter Kahn, a professor in the Department of Psychology and the School of Environmental and Forest Sciences at the University of Washington. We talk about why nature is so good for us, and how much of nature we have lost – and we don’t even realize it.