Figure 1.

Mice exposed to light at night increased body mass. (A) Body mass in mice exposed to dimly lit and dark nights. (B) At the conclusions of the study body mass gain was increased among mice exposed to dim light at night as compared to dark nights. (C) Epididymal fat pad mass, an index of overall adiposity, was also increased in mice exposed to light at night. (D) Mice exposed to dim light at night altered timing of food intake consuming more during the light phase than mice exposed to dark nights. (E) There were no differences in blood glucose rhythms between lighting conditions. All data are presented as (mean ± SEM). *indicates dim light differs from dark nights.