A novel way to treat weight gain may involve limiting our exposure to light at night—whether that light comes from our bedside lamps, the light pollution that sneaks through our windows, or the electronic devices we use as we drift off to sleep.

Randy Nelson, PhD, who chairs the department of neuroscience in the West Virginia University School of Medicine, is exploring how maintaining a truly dark sleeping environment may make it easier to keep weight off.

Read more of this article from Sleep Review