Should you have any lights on when sleeping? It’s a solid NO, One study has identified that blue light increases the chances of breast cancer by as much as 22%. It was attributed to the hormonal disruptions that happen because of the abnormal presence of light. In this episode, you’ll learn about more blue light, its ill effects on your sleep, and what sleeping in absolute natural darkness does for you. Switch those lights out in the evening, and your health will shine in approval!