Twenty Years Ago Scientists Confirmed Light at Night Increased Breast Cancer Risk

Week 2 of Breast Cancer Awareness Month (October 8 - 14th) explains how much we already knew 20 years ago

It is shocking to realize that twenty years ago, we already knew that exposure to electric light at night suppressed melatonin and increased breast cancer risk. And we also knew the most potent light wavelengths are, in the blue part of the spectrum. (See October 11 & 12 below)