Sunlight & Nature Your ancestors spent 99% of human history outdoors. They woke with the sunrise. They worked in fields, forests, and open spaces. They spent their days under an open sky. Their bodies and brains evolved in relationship with the natural world — with its light, its rhythms, and its textures. You are living in the most indoors generation in human history. And the research suggests that your brain still expects the outdoors — still needs it — in…