05/05/2026
https://www.facebook.com/share/p/1BHTZ6eQws/?mibextid=wwXIfr
A well-known study from Natural Resources Institute Finland, published in Science Advances, investigated how nature-based playgrounds affect children’s health. In this 28-day experiment, researchers modified urban daycare yards by adding forest soil, grass, and plants, and observed around 75 children aged 3–5. Compared to children playing in standard urban environments (with gravel or artificial surfaces), those exposed to natural materials showed a noticeable increase in the diversity of beneficial microbes on their skin and in their gut.
These microbial changes were linked to improvements in immune system function, including higher levels of immune-regulating cells such as T-cells and better balance in immune responses. However, the study did not claim a dramatic or instant “boost” in overall health; instead, it showed early signs of improved immune regulation, which may help protect against inflammatory and autoimmune conditions over time. The findings suggest that regular contact with natural environments can play an important role in supporting children’s developing immune systems.
