Disrupting our internal clocks can lead to diseases such as obesity and diabetes. Scientists at Northwestern have uncovered the mechanism behind why late-night eating is linked to weight gain and diabetes. Joseph Bass, MD, PhD, led the study published in the journal Science.  He shares the results and details the two decades of work leading to this latest discovery. Bass is chief of the Division of  Endocrinology, Metabolism and Molecular Medicine in the Department of Medicine.