長文読解（人文系・自然科学系の文章）- 問題80

The concept of "forest bathing," known as shinrin-yoku in Japanese, has gained international recognition as a powerful practice for mental and physical well-being. Originally developed in Japan in the 1980s, this practice involves spending time in forests mindfully, using all five senses to connect with nature. Unlike hiking or other vigorous outdoor activities, forest bathing emphasizes slow, deliberate movement and deep sensory engagement with the forest environment.
Scientific research has revealed remarkable health benefits of this practice. Studies conducted in Japan and other countries show that spending time in forests can significantly reduce cortisol levels, lower blood pressure, and boost immune system function. The phytoncides—natural chemicals released by trees—play a crucial role in these benefits by enhancing the activity of natural killer cells in our immune system. Additionally, forest bathing has been shown to reduce symptoms of anxiety and depression while improving overall mood and concentration.
Today, forest bathing programs are being implemented in healthcare systems worldwide. In South Korea, forest therapy is officially recognized as a medical treatment, and specialized forest therapy centers have been established. Similarly, countries like Finland, Germany, and Canada have incorporated nature-based therapies into their public health initiatives, recognizing the profound connection between human health and natural environments.