
Dayguards’ “Forest Floor”
Dayguards (childcare workers) in Finland built a “forest floor” and changed children’s immune systems. Within 30 days of playing in forest soil and leaf garbage, Finnish preschoolers had increased the number of T-cells and much more varied intestinal bacteria. In a fascinating experiment, Finnish researchers have recreated the environment on a forest base on the playgrounds of four urban day care homes. Understanding the importance of nature, they covered the playgrounds with forest soil, moss, meadow grass, dwarf moose,








