Want to add glowing skin to your list of things to be grateful for this season? Start by feeding your face a balanced, healthy diet. Findings from two recent studies indicate the better you eat, the better you will sleep and the more healthy and youthful your complexion will look. To learn more about the effect of diet on sleep patterns, researchers at the University of Pennsylvania’s Perelman School of Medicine studied the daily calories and foods consumed by people who were part of the 2007-2009 National Health and Nutrition Examination Survey. They also studied how much sleep the participants reported getting each night.