Even Dim Light at Night Can Mess Up Your Clock

I was so hoping only bright light would tweak my inner clock. No such luck.

"The study results are important because they indicate that prolonged exposure to dim or low light at night (such as that in homes and office buildings) can influence mammals' biological clocks and "throw off" their sleep-wake cycles."

Source: http://www.sciencedaily.com/releases/2010/09/100917161154.htm