Actually it is a very serious topic relating to human biology: http://scholar.google.com/scholar?q=light+exposure+breast+cancer http://scholar.google.com/schol

Actually it is a very serious topic relating to human biology: http://scholar.google.com/scholar?q=light+exposure+breast+cancer http://scholar.google.com/scholar?q=light+exposure+breast+ca... I would give a big upvote to Philips Hue Bulbs if I could. When those are too expensive nightlights are fine with me.