So what do marijuana and poor sleep have in common? A recent study has suggested that falling behind on sleep can lead to a similar side effect of smoking pot. The University of Chicago study shows that sleep loss amplifies and extends blood levels of a chemical signal that enhances the joy of eating particularly the guilty pleasures gained from sweet or salty high-fat snack foods. Sleep-deprived participants in this study all young healthy volunteers were unable to resist what the researchers called highly palatable rewarding snacks meaning cookies candy and chips even though they had consumed a meal that