New research suggests nature walks are good for your brain

The article stated that individuals who took the 90-minute nature walk showed a decrease in rumination. The individuals brain activity also showed a change consistent with this result. The study also found that the scans showed decreased activity in the subgenual prefrontal cortex.

https://www.washingtonpost.com/news/energy-environment/wp/2015/06/29/fixating-or-brooding-on-things-take-a-walk-in-the-woods-for-real/?utm_term=.f51ab58a9902