FOOD AND PSYCHOLOGY You know you won't stop at one ... Cravings, EXPLAINED Cravings are a lot like itches. They demand your attention. They occupy your thoughts. They are hard to resist. And yet, once they go away, you question why they had such a hold on you. Here's what you need to know about these urges- and why it's OK to sometimes let yourself have that treat. 20 SPRIN G 2017 PHOTO BY PAUL BRADBURY/GLOW IMAGES Too much junk food wreaks havoc on the body, so why do we crave cake and cookies instead of carrots?