Preschoolers Rewilding for Health

In Finland, young children are trading plastic playgrounds for mud, wild plants, and moss, leading to noticeable improvements in their health. This bold experiment shows that by "making food" with sand and soil, children aren't just playing - they're reshaping their immune systems. With tiny scientists at play, researchers discovered that getting hands dirty with nature boosts immune defenses, reduces harmful bacteria, and fosters a balance between the biodiversity on their skin and gut. As one principal scientist put it, "It's good for national health." The gardening revolution is catching on, spreading a wave of green spaces across communities, proving that nature is more than just a playground; it's an essential part of healthy childhood development.