長文読解（人文系・自然科学系の文章）- 問題36

The concept of "forest bathing," known as shinrin-yoku in Japanese, has gained international attention as a powerful wellness practice. Originally developed in Japan during the 1980s, this practice involves immersing oneself mindfully in a forest environment to reduce stress and improve mental health.
Scientific research has validated many of the claimed benefits of forest bathing. Studies conducted by Dr. Qing Li at Nippon Medical School found that spending time in forests can significantly boost the immune system by increasing natural killer cell activity by up to 50%. The practice also reduces cortisol levels, lowers blood pressure, and decreases anxiety and depression symptoms.
The therapeutic effects are attributed to phytoncides, natural compounds released by trees and plants. These airborne chemicals not only protect plants from insects and bacteria but also provide health benefits to humans when inhaled. Popular forest bathing destinations include the ancient cedar forests of Yakushima Island and the bamboo groves of Kyoto.
Today, forest therapy programs are being implemented in hospitals and wellness centers worldwide, demonstrating how traditional Japanese wisdom can contribute to modern healthcare approaches.