A team at the Institute of Cancer Research in London found women had larger waistlines if their bedroom was "light enough to see across" at night.Holy Nightlight Batman! Yes, of course, why haven't we thought of it before? This must be the piece of the puzzle we've been missing all this time..
However, they caution there is not enough evidence to advise people to buy thicker curtains or turn off lights.
Our rooms are lighter because we have to get up and pee in the night, dumbass.