Going Outside Can Change Our Hormones and Improve Microbiome Diversity
Jan 8, 2025
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Kathy Willis, a biodiversity professor at the University of Oxford and author of "Good Nature," shares her insights on nature's profound impact on human health. She highlights how even small interactions with plants can enhance well-being and diversify our microbiomes. From the benefits of urban parks to the power of indoor plants, Kathy discusses practical ways to incorporate nature into daily life. She also emphasizes the need for future research on nature-based therapies in modern medicine, advocating for a more nature-centric approach to urban planning and healthcare.
Interacting with nature, even through simple indoor plants or scents, significantly lowers stress hormones and enhances overall well-being.
Living in biodiverse environments improves gut health by exposing individuals to beneficial microorganisms that reduce inflammation and support microbiome diversity.
Deep dives
Impact of Nature on Human Health
Interacting with nature positively affects both psychological and physiological health. Research highlights that simply looking at vegetation can enhance recovery rates in clinical settings, as demonstrated by a study showing faster recovery for patients with hospital views of trees compared to brick walls. This interaction triggers beneficial changes in the nervous system, such as lowered heart rates and decreased levels of stress hormones like adrenaline. The positive influence of plants extends to various senses, suggesting that all forms of engagement with nature can yield significant health benefits.
Microbiome and Biodiversity Connection
The relationship between our environment and gut health is increasingly recognized, with studies showing that environments rich in plant diversity contribute to a healthier microbiome. People living in biodiverse areas are exposed to a variety of beneficial microorganisms that can improve their health and reduce inflammatory markers in the blood. Research indicates that interactions with organic soil or native plant life can enhance gut microbiota, particularly in children who engage in play activities in diverse natural settings. Engaging with nature not only supports physical health but also plays a vital role in fostering a robust gut environment.
Bringing Nature Indoors
Creating green spaces in urban settings or indoors can yield many health advantages, similar to outdoor experiences with nature. Simple changes like having indoor plants, such as spider plants, or using essential oils from various plants can improve air quality and introduce beneficial microbes into indoor environments. The scent of certain plants, like lavender and rosemary, is shown to alleviate stress and emotional discomfort, influencing biochemical pathways in the body. Efforts to incorporate natural elements into workspaces and homes can significantly enhance overall well-being and promote a healthier atmosphere.
Going outside has many benefits, from positively affecting our nervous system to diversifying our microbiome. But you don’t need a forest preserve to benefit from nature—sometimes even a houseplant or the smell of lavender can improve our life. Kathy Willis, a professor of biodiversity at the University of Oxford, joins host Rachel Feltman to discuss her new book Good Nature: Why Seeing, Smelling, Hearing, and Touching Plants Is Good for Our Health. Willis suggests ways for even city dwellers to reap the benefits of nature, such as strolling through urban parks or keeping plants in their office.
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Science Quickly is produced by Rachel Feltman, Fonda Mwangi, Kelso Harper, Madison Goldberg and Jeff DelViscio. This episode was hosted by Rachel Feltman with guest Kathy Willis. Our show is edited by Fonda Mwangi with fact-checking by Shayna Posses and Aaron Shattuck. The theme music was composed by Dominic Smith.