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.

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