https://www.naturalnews.com/2025-12-02-surprising-cognitive-boost-of-getting-dirty.html
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Beyond weight management, the outdoors fine-tunes a child's biology. Exposure to sunlight helps regulate sleep-wake cycles, leading to longer, more restful sleep. Furthermore, playing in natural environments exposes children to a diverse array of microbes, which helps train their developing immune systems, potentially reducing the risk of allergies and autoimmune conditions later in life..."
