The sense of smell is one of the most powerful dimensions of Forest Bathing. Natural fragrances from trees, plants, soil, and flowers shape the sensory richness of the experience and also contribute directly to well-being. Let’s find out why and how.
What is Forest Bathing and why smell matters
Forest Bathing is a nature-based well-being practice that strengthens our natural capacity to adapt to change with resilience, clarity, and balance, supporting a healthier quality of life. And smell plays a key role. The forest air is filled with natural compounds from trees, plants, and soil that shape the atmosphere and interact with our biology. Inhaling these scents, especially phytoncides, can calm the nervous system, boost immune function, and awaken memories and emotions, making smell one of the most direct and powerful pathways through which Forest Bathing enhances well-being.
Techniques to awaken your sense of smell during Forest Bathing
Smell can be trained and heightened. Techniques such as slowing down, closing your eyes, taking deep, mindful breaths, and focusing on the subtle aromas of trees, plants, and soil can awaken your olfactory awareness. Repeated practice over guided walks helps the brain link scents with memory, emotion, and attention, enhancing the overall Forest Bathing experience.
Health benefits of engaging the sense of smell in Forest Bathing
A central mechanism behind this effect is the inhalation of essential oils released by trees, known as phytoncides. These airborne compounds have demonstrated benefits for mood, cognition, and immune function by enhancing immune responses and even help prevent infections.
Phytoncides exert antioxidant and anti-inflammatory effects on the airways, reduce mental fatigue, improve cognitive performance and mood, and promote deep relaxation. They also increase levels of natural killer cells and other anti-cancer proteins, with these benefits persisting for up to one month.
Smell also works on the level of memory and perception. Participants in different studies have described how natural scents evoke childhood recollections, clear the mind, heighten awareness of surroundings, and generate feelings of relaxation and rejuvenation.
In guided walks studied by Forest Therapy Hub (FTHub) and authors published in Forests (MDPI, 2023), scents were rated as a highly valued natural element for well-being, with a median score of 10 and a mean of 9.0.
A recent international study led by Gregory Bratman, keynote speaker at the 2nd Conference of Forest Therapy at UBC, and Chia-Pin Yu from Taiwan, a partner in FTHub in a EU-funded project, among other authors, highlights how central olfaction is for human and planetary well-being. Smell is linked to life satisfaction, memory, stress regulation, cognition, and social interactions, while exposures through the olfactory pathway can also trigger inflammatory or anti-inflammatory responses in the body. The authors propose a framework that integrates the olfactory system into understanding how natural environments affect human health, emphasizing that natural smells, such as those encountered in forests, should be considered in policy and land-use decisions.
Additional research confirms the multifaceted role of nature scents. Benefits extend across emotional, spiritual, physical, and cognitive dimensions in all four seasons (Bentley et al., 2022). The absence of city odors is perceived as “cleanliness and freshness,” leading to heightened awareness, while woodland “earthy” fragrances are associated with peace and even a transcendent connection with nature (Irvine et al., 2019).
Studies show that small-scale exposure to natural smells can provide significant public health benefits when applied broadly (Indig et al., 2019). Woodland scents also stimulate positive emotional well-being (Pressman et al., 2019). At the neurophysiological level, the dry woody odors of α-pinene and limonene decrease activity in the prefrontal cortex, helping the body to relax (Ikei & Miyazaki, 2015). Importantly, sensory therapy in nature has been shown to be more effective than equivalent therapies conducted in standard indoor environments (Goto et al., 2014).
Smell as the hidden key to deeper nature connection
Focusing on smell opens up a different kind of connection with the forest. The scents of trees, soil, and plants calm the mind, lift the mood, and make you feel more present. Natural aromas don’t just influence the body; they help you notice the small details, feel grounded, and simply enjoy being in nature.
Have you ever noticed scents in nature? They often take us back to warm, safe places from childhood or other pleasurable moments in life. Smell is far from a background detail in Forest Bathing: it is a direct line between nature and our body and mind, shaping everything from our emotions to immune system responses.
Act now, enrolling in our Forest Bathing Guide Training and Forest Therapy Practitioner Training. Grow together, equipping you with essential skills to lead transformative experiences in nature.
