Trees have a strong influence on the earth’s climate. Trees clean the air. When it rains in the forest, not only does it make a beautiful sound, it also refreshes the air, releasing a very special scent that stirs our senses. The scent of the forest is quite unique. What used to be more of a feeling is now proven by science, which calls it the “biophilia effect”. Going into the forest, breathing in the scent of the forest, and letting the greenery take effect can have a healing effect on us humans. But to reduce the impact of the forest to mere “effects” does not do justice to this holistic experience.
Yearning for nature
According to UN estimates, by 2050 two out of every three inhabitants of the earth will live in an urban environment. There are currently 31 megacities worldwide – by the year 2050 there will likely be 50 such cities. Each of these urban hotspots has more than 10 million inhabitants. Not only the mass of people, but also increasing digitalization is causing human life to move further and further away from nature. It’s no wonder that many people yearn for a connection to nature, to experience nature.
Surrounded by trees, humans are able to experience something vast and complex. Something that can be hard for us to put into words. The Japanese speak of “shinrin-yoku” meaning “forest bathing”. This does not mean bathing in a lake or stream tucked away among the shrubs and bushes. It is the immersion in nature with all your senses. A mindful stroll through nature, without purpose except to be one with the forest atmosphere, collecting sensory impressions, reducing stress – this is what “shinrin-yoku” is all about. In Japan, forest therapy has been integrated into the state healthcare system, ever since people became aware of its many positive effects.
Worldwide research
Not only in Japan, but worldwide scientists are researching what is so beneficial about the forest when we are immersed in its pure, green vegetation. Could it be the comparatively low temperatures that increase physical performance? Do the special lighting conditions play a role? Or is it the colour green, which has been shown to have a calming effect on the vegetative nervous system and promotes healing processes? Perhaps the springy forest floor, which is particularly good for joint and back problems? Or the particular sense of tranquillity it exudes?
More trees, less disease?
A study shows that 20 minutes spent in a natural, green environment is enough to noticeably reduce our level of stress hormones. The cortisol level is lowered, while certain enzymes, which are increasingly released during stress, are broken down. Researchers call it a “nature pill” in the scientific journal “Frontiers in Psychology”, and their data is part of numerous findings on the subject of forests and the human psyche. In the 1980s, for example, the Swedish researcher Roger Ulrich discovered that patients who looked out of the hospital window onto a scenic green landscape after an operation needed less painkillers and recovered more quickly. Later, US environmental psychologist Marc Berman discovered that residents of green areas suffered less from cardiovascular disease and diabetes.
Nature leaves us in peace – bathing in the forest connects us with ourselves
In the forest there is nothing to buy, there are no short-term temptations and even goals set by others appear more distant instead of exerting more pressure. Right in its midst, we become part of it. We feel elevated and grounded at the same time. Where else can the interplay of becoming and passing be experienced so intensively? Dead wood lies about the forest floor, while young clover grows in the fertile ground it creates. In the midst of this natural cycle, a transformation takes place inside us.
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