A 2012 study,
Creativity in the Wild, demonstrated that immersion in nature improved a person's ability to solve creativity problem solving tasks.
Attention Restoration Theory (ART) puts forth the notion that spending time in nature can improve higher order cognitive function - thinking skills - such as selective attention, problem solving, and multi-tasking.
The study unplugged people and immersed them in nature for four days as part of an Outward Bound Course. Participants were then tested in the field and demonstrated a 50% improvement in creative problem solving tasks.
Is it being in the woods or is it just being unplugged - who cares. Either way you are out of your sterile world and actively moving in our natural environment.
You may not have four days, but four hours is a start to rewiring your brain.