Nature as Medicine?

Does being in nature have healing powers? The Japanese believe that 'Shinrin-yoku' or 'forest bathing', a contemplative walk through the woods, can lead to decreased stress, natural mood elevation and even a stronger immune system.  

Qing Li, the president of the Japanese Society of Forest Medicine and senior professor at Nippon Medical School in Toyko places electrodes on Jennifer Gardy's brain to measure her frontal lobe brain activity during her forest walk. The next day, she meets Li in downtown Tokyo to run the same test in the city - and the difference is remarkable.

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