For most of history, humans rose with the sun and slept when it set. Enter Thomas Edison, and with a flick of a switch, night became day, enabling us to work, play and post cat and kid photos on Facebook into the wee hours.
URL: http://www.topix.com/health/depression/2012/11/chronic-exposure-to-light-at-night-causes-depression-learning-issues-research-shows?fromrss=1
No comments:
Post a Comment