Bedroom Light at Night Might Boost Women’s Weight

Women, beware: Sleeping with a light on or the TV going in your bedroom could make you put on weight.

That’s the finding of new research published in JAMA Internal Medicine. While the study doesn’t prove that sleeping with a light on causes weight gain, it suggests the two may be linked, the researchers said.

“Turning off the light while sleeping may be a useful tool for reducing a possibility of weight gain and becoming overweight or obese,” said lead author Dr. Yong-Moon Mark Park. He is a postdoctoral fellow at the U.S. National Institute of Environmental Health Sciences in Research Triangle Park, N.C.

Park said that exposure to artificial light at night may suppress the