The Benefits of Being Out in Nature

Is there some kind of mechanism we can attribute to why we see this positive effect of being out in nature? As you said earlier, it's quite difficult to get a detailed look at the functions of the brain when people in real environments. A lot of that research has focused just on how the brain activity when people are looking, for example, photographs of natural and built environments. But even with that limitation, it's shown that the brain does respond differently when we're just looking at photographs of natural environments versus built environments.