It's long been known that losing weight helps reduce snoring and sleep apnea. Now an MRI study from the University of Pennsylvania has found that the culprit is not neck or chin fat, but tongue fat. Yes, the problem is fat tongues.

Schwab found a strong correlation between lowing tongue fat volume and lessening sleep apnea: "Future studies could be designed to explore whether certain low-fat diets are better than others in reducing tongue fat, and whether cold therapies, like those used to reduce stomach fat, might be applied to reducing tongue fat." He is also looking into whether some snorers who are not obese might just have fat tongues.