*Losing fat in your tongue can alleviate symptoms of obstructive sleep apnea (OSA). *Researchers used an MRI to see how weight loss affected the upper airway. *Experts say understanding the link to tongue fat may help them treat people with OSA. Losing weight can help your sleep, according to a new study that found tongue fat can increase your risk of sleep apnea. The study says that losing fat in your tongue can alleviate symptoms of obstructive sleep apnea (OSA). The condition occurs when people stop and start breathing during sleep. Patients wake up randomly during sleep and often snore....