March 23, 2015
How artificial light affects our health in more ways than we think
Life on Earth has developed over the course of billions of years to attune its cycles and rhythms to the fixed routines of light and dark. Yet the modern world counters this hardwired biology in humans and radically increases our likelihood of developing a range of physiological and mental illnesses and conditions. That is the main conclusion of a new paper from Richard G. Stevens and Yong Zhu published by the Royal Society last week. The article outlines how inadequate light during the day, especially inside buildings, coupled with overexposure to artificial light in the evening not only disrupts our sleep patterns but alters our physiognomy at a metabolic, hormonal and even genetic level. The report also highlights how this can account for ‘a portion of the modern pandemics of breast and prostate cancers, obesity, diabetes and depression’.
