Kathy Willis, a Professor of Biodiversity and Crossbench Peer in the House of Lords, shares insights on the healing power of nature. She discusses how simply viewing greenery can reduce stress hormones. Kathy highlights the benefits of gardening without gloves, exposing us to healthy microbes. The episode emphasizes the importance of accessing urban green spaces for mental well-being and talks about the soothing scents of herbs like lavender. Her work advocates for integrating nature into our lives for improved health and happiness.
Exposure to greenery, like having a view of natural landscapes or incorporating plants in workspaces, significantly enhances mental health and cognitive performance.
Engaging in gardening without gloves promotes a healthy microbiome by increasing beneficial bacteria, thus supporting overall physical well-being.
Deep dives
The Benefits of Green Views
Staring out of a window that overlooks greenery, rather than a brick wall, significantly benefits cognitive function and mental well-being. Research has shown that students with views of green spaces perform better academically than those who see only concrete. Additionally, individuals experience physiological and psychological calming effects when exposed to nature, contributing to improved concentration and mood. This insight highlights the necessity for urban planning that includes green spaces in educational and workplace environments to foster productivity and well-being.
The Impact of House Plants
Having a vase of yellow roses or house plants with green and white leaves on a desk can lead to notable improvements in mental and physical health. Studies indicate that the presence of certain flowers, particularly yellow roses, correlates with lower blood pressure and increased feelings of calmness among individuals. Furthermore, the psychological effects vary by color, with yellow and green being the most beneficial, while red can induce stress. These findings suggest that incorporating specific plants into one’s workspace can promote a serene and productive atmosphere.
The Superior Experience of Park Walking
Walking in parks provides superior mental health benefits compared to urban streets, as evidenced by studies comparing individuals' experiences in both environments. People exposed to diverse vegetation, natural sounds, and scents while walking reported significantly lower stress levels and greater overall well-being. Factors like being able to touch different plants further enhance the therapeutic effects of nature. Thus, making time for park walks can be an effective strategy for reducing everyday stress and improving mental clarity.
Gardening's Health Advantages
Gardening, particularly without gloves, has remarkable benefits for health by facilitating a connection with beneficial microbes in biodiverse environments. This interaction not only supports gut health through microbial diversity but also helps reduce inflammation markers. An experiment demonstrated that children playing in soil showed elevated gut and skin bacterial diversity compared to those in sanitized environments. Consequently, engaging in gardening fosters a healthy microbiome, promoting physical well-being while underscoring the value of interacting with the natural world.
Kathy Willis discusses with Ivan six things which should be better known.
Katherine Willis CBE is Professor of Biodiversity in the department of Biology and the Principal of St Edmund Hall, University of Oxford. She is also a Crossbench Peer in the House of Lords. Previous roles include Director of Science at the Royal Botanic Gardens, Kew, and a member of the UK Government’s Natural Capital Committee. In 2015, Kathy was awarded the Michael Faraday Medal for public communication of science from the Royal Society. Her new book is Good Nature: The New Science of How Nature Improves Our Health.
Staring out of a window onto greenery instead of a brick wall or a general urban scene.
Having a vase of yellow or roses or houseplant with green-white leaves on your desk.
Even if you only have 20 minutes for your walk or run, always head for the park/urban green space. Why? Because experiments show that there is a much greater reduction in our stress hormones (salivary amylase, cortisol and adrenaline) if we exercise in green space rather than on the streets.
Garden without your gloves. Why? Because experiments show when we do so the environmental microbiota (good bacteria) found in biodiverse environments, including organic soils, is transferred onto our skin and into our gut.
Visit the Mediterranean garden at the Royal Botanic Garden, Kew. Why? Because this hidden gem at Kew has a whole host of health benefits associated with it due to the smells (volatile organic compounds) given off by the mediterranean herbs lavender, rosemary, and mint.
Buy a diffuser and diffuse the scents of cypress trees in your home or office. Why? Because clinical experiments and field trials are showing that when we do so, not only are stress hormones reduced, but also it can trigger a significant increase of natural killer cells in our blood.