Humans evolved to the rhythms of the natural light-dark cycle of day and night. The spread of artificial lighting means most of us no longer experience truly dark nights. Meanwhile, research suggests that nighttime artificial light can negatively affect human health, increasing risks for obesity, depression, sleep disorders, diabetes, breast cancer and more. Purchasing fully shielded … Continue reading The Spread of Artificial Lighting Means Most of Us No Longer Experience Truly Dark Nights