Forest Medicine

Written By Hugh Asher

24th January 2026

Nature has long been recognised for its ability to rejuvenate and heal, offering a variety of benefits for both physical and mental wellbeing. In recent years, the concept of ‘forest medicine’ has gained significant attention, drawing upon the therapeutic benefits of spending time in natural environments, particularly forests. Forest Medicine is a comparatively new science, combining elements of alternative medicine, environmental medicine and preventive medicine, and focuses on studying the effects of forest environments, and practices such as Forest Bathing orShinrin-yoku, on human health.

The groundbreaking work of researchers like Qing Li and Yoshifumi Miyazaki has shed light on the profound effects of immersing oneself in nature, highlighting its potential to enhance human health and overall quality of life.

Dr. Qing Li

Dr. Qing Li, a prominent figure in the field of forest medicine, is known for his extensive research on the practice of ‘forest bathing’ or Shinrin-yoku in Japan and is the author of the book "Forest Bathing: How Trees Can Help You Find Health and Happiness”. He is a Professor at the Nippon Medical School in Tokyo and is the President of the Japanese Society of Forest Medicine. As an immunologist and advocate for the healing power of nature, Qing Li has conducted numerous studies exploring the physiological and psychological impacts of spending time in forests. His research has revealed compelling evidence that forest environments can significantly reduce stress, boost the immune system, and improve overall mental health.

One of the key elements of forest medicine lies in the inhalation of phytoncides, the natural chemical compounds emitted by trees and plants. These airborne aromatic substances have been shown to have anti-inflammatory and immune-boosting effects on the human body. Qing Li's studies have demonstrated that the inhalation of phytoncides during forest bathing experiences has been linked to reduced stress, lowered blood pressure, and enhanced mood, as well as enhanced natural killer cell activity, which plays a crucial role in combating infections and cancer.

Professor Yoshifumi Miyazaki

Similarly, Professor Yoshifumi Miyazaki, a leading expert in forest medicine, retired Professor from the University of Chiba in Japan, and author of "Shinrin Yoku: The Art and Science of Forest Bathing” has conducted extensive research on the physiological effects of forest environments on human health. Miyazaki's studies have shown that spending time in forests can lower blood pressure, reduce cortisol levels (a stress hormone), and improve heart rate variability, contributing to overall cardiovascular health. His work emphasises the sensory experience of forests and its impact on stress reduction, cognitive function, and emotional wellbeing and recognises the importance of engaging all the senses - sight, sound, smell, touch - to fully immerse yourself in the healing properties of the forest.

Moreover, both Li and Miyazaki have emphasised how calming effect of natural surroundings can promote relaxation, mindfulness, and a sense of connection with the environment, fostering a profound sense of wellbeing. Both Li and Miyazaki also advocate for the integration of forest medicine into modern healthcare practices. They argue that nature-based therapies can complement traditional medicine, offering preventive and holistic approaches to wellness. They believe that incorporating forest bathing into your lifestyle can mitigate some of the detrimental effects of chronic stress, urbanisation, and sedentary lifestyles that are prevalent in today's society.

Forest Medicine

According to Qing Li, Forest Medicine studies the effects of forest environments on human health and is a new interdisciplinary science that also belongs to the categories of alternative medicine and environmental medicine. It was developed from Shinrin-yoku and Forest Bathing and is an evidence-based preventative medicine.

The concept of forest medicine is not merely theoretical; it's supported by empirical evidence and has gained recognition beyond scientific circles, leading to the development of forest therapy programs and eco-therapy practices worldwide. Forest bathing has been incorporated into wellness retreats, healthcare initiatives, and stress management programs, offering individuals an opportunity to reconnect with nature and experience its healing effects first-hand. Japan, where shinrin-yoku originated, has recognized the therapeutic benefits of forest immersion and established designated forest therapy trails.

Incorporating forest medicine into daily life doesn’t require access to vast woodlands either. Even small doses of nature exposure, such as urban parks or green spaces, can offer therapeutic benefits. Integrating nature walks, mindfulness practices, or simply spending time outdoors can contribute to improved health and mental clarity. The benefits of forest medicine also extend beyond individual wellbeing to include broader environmental conservation efforts. As people reconnect with nature through forest therapy and nature connection experiences, they develop a growing appreciation for the importance of preserving forests and biodiversity. This realisation can foster a recognition of the symbiotic relationship between human health and the environment, promoting stewardship and conservation practices.

However, despite the growing body of evidence supporting forest medicine, challenges such as urbanisation, deforestation, and limited access to natural spaces remain significant hurdles. Efforts to preserve and create green spaces in urban environments are crucial to ensure that everyone has the opportunity to benefit from nature's healing powers.

Final Thoughts

The work of Qing Li and Yoshifumi Miyazaki has illuminated the profound healing potential of forests. Their research underscores the importance of reconnecting with nature for the betterment of human health and the environment. As we navigate the complexities of modern life, the invitation to step into the serene embrace of the forest stands as a timeless remedy - a source of rejuvenation, restoration, and profound healing for the body, mind, and soul.

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Hugh Asher

I’m Hugh and I’m a Certified Forest Bathing Guide and Forest Therapy Practitioner, having trained with the Forest Therapy Institute and the Forest Therapy Hub. My purpose in life is to inspire people to improve their wellbeing, and to help people to help and inspire others to improve their wellbeing. I do this through promoting greater nature connection as I am a passionate believer in the benefits to health and wellbeing that nature and increased connection to nature can bring.

Professionally, I have worked for over twenty years supporting people experiencing: mental health problems; autism; learning disabilities; school exclusion; experience of the care system; and a history of offending behaviour. Currently I am the ‘Recovery Through Nature Lead’ in a residential rehab for people experiencing drug and alcohol problems.

I have a PhD in Therapeutic Relationships, but Dr. Hugh makes me sound too much like a Time Lord.

https://www.linkedin.com/in/hugh-asher/
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