"Ut på tur aldri sur." This Norwegian saying, which basically translates to "Out for a walk, never sour" is used all the time by a nation of people who go for regular walks out in nature. Modern science is now proving what Norwegians have always known intuitively, that nature effects our character and does good things to the human brain, making us healthier, happier, and smarter.
A walk outside in nature as a health-promoting physical activity is a given, but many modern Norwegians are also embracing walking barefoot out in nature. This the age-old activity stimulates the feet as they press on the gound, something which helps with the body's healing system. Climbing trees barefoot is also an activity that naturally stimulates the hands and feet.
Trees have always been vital to the health of life in Norway, and were of inestimable value for the Norse people. Trees represented a place where food was to be found, they were a source of heat, and were the most important building material. As important as trees were to Norse society, it was essential to not cut down too many trees in one area, as this would create ecological and resource problems.
The people of the North knew that the Earth was incredibly old and had powerful energies, and that all nutrition and everything they needed to be healthy came from nature. It was of paramount importance for the Scandinavian people of the Viking Age to keep the earth fertile. If the nature that surrounded them was fertile, they too would be fertile.