A new study says people may be sabotaging their diets in an unexpected way - through too little sleep. In an article published this week in the Annals of Internal Medicine, researchers describe their work with ten patients undergoing 14 days of moderate caloric restriction. Some of the patients got 8.5 hours of sleep during the study, while others got just 5.5 hours. The researchers found that the group with less sleep lost less weight, and shifted their metabolism towards less efficient fat-burning than the full-sleep patients. While the work is only on a few people for a limited time, the researchers say it may point towards interesting areas for further study. We'll find out more.
Produced by Annette Heist, Senior Producer