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Jerry Seinfeld used to have a joke about his two warring halves: "Night Guy" and "Morning Guy." "Night Guy" wants to stay up late, and "Morning Guy" really wishes he'd gone to bed earlier. Some of us share a similar dualism in our eating habits. While our morning selves are usually able to find contentment with light, nutritious meals, our nighttime personas just can't get enough potato chips and pints of ice cream.
An April 2013 study in the journal Obesity offers an explanation for our dueling selves. A group of researchers from Oregon Health & Science University, Harvard University and Brigham and Women's Hospital concluded that, thanks to our circadian system-aka our internal body clock-we're hungriest a few hours before bed time and the least hungry when we wake up.
MORE: Is Your Snacking Out of Control?
"We've uncovered a rhythm in appetite that we didn't previously know existed," says the study's senior author Steven Shea, Ph.D., director of the Center for Research onRead More »from Get Your Late Night Snacking Under Control